The Pearson Guide to Inorganic Chemistry for the IIT JEE and NEET

Atul Singhal

Chapter 6

Compounds of P-block Elements - 2 - all with Video Answers

Educators

Chapter Questions

Problem 1

The oxidation states of the most electronegative element in the products of the reaction, $\mathrm{BaO}_{2}$ with dil. $\mathrm{H}_{2} \mathrm{SO}_{4}$ are
(a) 0 and $-1$
(b) $-1$ and $-2$
(c) $-2$ and 0
(d) $-2$ and $+1$

Narayan Hari

Narayan Hari

Numerade Educator

Problem 1

The oxidation states of che most electronegative element in the products of the reaccion, $\mathrm{BaO}_{2}$ with dil. $\mathrm{H}_{2} \mathrm{~S} Q_{4}$ are
(a) 0 and $-1$
(b) $-1$ and $-2$
(c) $-2$ and 0
(d) $-2$ and $+1$

Narayan Hari

Numerade Educator

Problem 2

The volume strengrh of $1.5 \mathrm{~N} 11, \mathrm{O}_{2}$ solution is
(a) $4.8$
(b) $8.4$
(c) $4.0$
(t) $8.0$

Narayan Hari

Numerade Educator

Problem 2

The volume strcngrh of $1.5 \mathrm{~N} 11_{2} \mathrm{O}_{2}$ solution is
(a) $4.8$
(b) $8.4$
(c) $4.0$
(d) $8.0$

Narayan Hari

Numerade Educator

Problem 3

In comparison ro warcr, hcavy warce
(a) has lowcr dcnsity
(b) has lowce boiling poinr
(c) has lowcr dissociarion constant
(d) in gcneral, rcacrs fasrer

Narayan Hari

Numerade Educator

Problem 4

Which among the following is paramagnetic?
(a) $C .10_{2}$
(b) $\mathrm{Cl}_{2} \mathrm{O}_{6}$
(c) $\mathrm{Cl}_{2} \mathrm{O}$
(d) $\mathrm{Cl}_{2} \mathrm{O}$

Narayan Hari

Numerade Educator

Problem 5

Which onc of rhe following on hearing gives a mixrurc of $\mathrm{SO}_{2}$ and $\mathrm{SO}_{3}$ ?
(a) $\mathrm{CuSO}_{A}$
(b) $7 . \mathrm{nSO}_{3}$
(c) $\mathrm{FcSO}_{\mathrm{i}}$
(t)) $\mathrm{Na}_{2} \mathrm{SO}_{4}$

Narayan Hari

Numerade Educator

Problem 6

What are the products formed in the reaction of xenon hexafluoride with silieon dioxide?
(a) $\mathrm{Xe} \mathrm{O}_{3}+\mathrm{Si} \mathrm{F}_{2}$
(b) $\mathrm{XeOT}_{4}+\mathrm{SiF}_{4}$
(c) $\mathrm{XeSiO}_{4}+\mathrm{HF}$
(d) $\mathrm{XeT}_{2}+\mathrm{SiT}_{4}$

Narayan Hari

Numerade Educator

Problem 7

Ozonc rencrs with dry iodine to give
(a) $1, \mathrm{O}_{9}$
(b) $\mathrm{I}_{2} \mathrm{O}_{A}$
(c) $\mathrm{IO}_{2}$
(d) $\mathrm{I}_{2} \mathrm{O}_{3}$

Narayan Hari

Numerade Educator

Problem 8

A commercial sample of hydrogen peroxide is labeled as 10 volume, irs percentage strength is
(a) $1 \%$
(b) $3 \%$
(c) $10 \%$
(d) $00 \%$

Narayan Hari

Numerade Educator

Problem 9

The catalyst uscd in lead chamber proccss is
(a) $\mathrm{Pt}$
(b) $\mathrm{V}_{2} \mathrm{O}_{5}$
(c) Cu-fillings
(tl) $\mathrm{NO}$

Narayan Hari

Numerade Educator

Problem 10

When zeolite is treated with hard water, the hardness is reduced due to exchange of
(a) $\mathrm{Ca}^{2-}$ ions of water with $\mathrm{Na}^{+}$ ions
(b) $\mathrm{Ca}^{2-}$ ioris of water with $\mathrm{H}^{+}$ ions
(c) $\mathrm{Cl}^{-}$ ions of water with $\mathrm{OH}^{-}$ ions
(cl) $\mathrm{SO}_{4}^{2}$ ions of watcr with OH I ions

Narayan Hari

Numerade Educator

Problem 11

The impuricy "oxides of nitrogen" present in sulphuric acid obtained in lead chamber process is removed by
(a) Passing $\mathrm{H}_{2} \mathrm{~S}$ gas
(b) Diluting the acid with water
(c) Theating impure sulphuric acid with $\left(\mathrm{NH}_{4}\right)_{2} \mathrm{SO}_{+}$
(d) Borh $(a)$ and $(c)$

Narayan Hari

Numerade Educator

Problem 12

Excess of $\mathrm{PCl}_{5}$ reacrs wirh conc. $\mathrm{H}_{2} \mathrm{SO}_{4}$ giving
(a) Sulphuryl chloricle
(b) '1hionyl chloride
(c) Sulphurous acid
(d) Chlorosul phonic acid

Narayan Hari

Numerade Educator

Problem 13

In $S_{g}$ each sulphur atom is
(a) $\operatorname{sp}^{2}$ hybridized with a nonplanar ting
(b) $\mathrm{sp}^{3}$ hybriclizct wirh a nonplanar ring
(c) $\mathrm{sp}^{3} \mathrm{~d}$ hybridized with a nonplanar ring
(d) sp hybridized with a plarar ring

Narayan Hari

Numerade Educator

Problem 14

Concentrated hydrochloric acid whea kept in open air sometimes produces a cloud of white fumes. The explanation for it is that
(a) strong affinity of HCI gas for moisture in air results in formation of droplets of liquid solution which appeas like a cloudy $\mathbf{s m o k e} .$
(b) oxygen in air reacts wirh rhe emirred $\mathrm{HCl}$ gas ro form a cloud of chlorinc gas.
(c) due ro srrong affinity for water, concentrarct hytrochloric acid pulls moisrure of air rowards irsclf. This moisture forms troplcrs of warcr and hence rhe cloud.
(d) concentrared hydrochloric acid emits strongly smelling $\mathrm{HCl}$ gas all the time.

Narayan Hari

Numerade Educator

Problem 15

Phosphoric acid is preferted to sulphuric acid in the preparation of $\mathrm{H}_{2} \mathrm{O}_{2}$ from barium peroxide because
(a) phosphoric acid is available at low cost than sulphuric acid.
(b) phosphoric acid aces as a preservator by retarding decomposition of $\mathrm{H}_{2} \mathrm{O}_{2^{\circ}}$
(c) sulphuric acid reacts with explosion.
(d) all of the above.

Narayan Hari

Numerade Educator

Problem 16

Whar producrs are cxpccred from the tlisproportionation rcacrion of hypochlorous acid?
(a) $11 \mathrm{ClO}_{3}$ and $\mathrm{Cl}_{2} \mathrm{O}$
(b) $\mathrm{HC} . \mathrm{O}_{2}$ and $\mathrm{HClO}_{1}$
(c) $\mathrm{HCl}$ and $\mathrm{Cl} \mathrm{O}$
(d) HCI and HCIO

Narayan Hari

Numerade Educator

Problem 17

Low volatile nature of $\mathrm{H}_{2} \mathrm{SO}_{4}$ is due to
(a) Strong bonds
(b) Hydrogen bonding
(c) Van der Waal's forces
(d) Nonc of rhesc

Narayan Hari

Numerade Educator

Problem 18

Which onc of the following srarcmenrs is corrcer?
(a) $11_{2} \mathrm{~S}$ is a weakcr acid rhan $\mathrm{I} \mathrm{I}_{2} \mathrm{O}$.
(b) Hydrazine $\left(\mathrm{N}_{2} \mathrm{H}_{1}\right)$ is a scronger bree than $\mathrm{NH}_{5^{\circ}}$
(c) 'The bond dissociation energy of $\mathrm{F}_{2}$ is less thar that of $C_{2^{2}}$
(d) Pure HBr can be prepared by the treatment of $\mathrm{NaBr}$ with concentrated $\mathrm{HNC}_{3}$.

Narayan Hari

Numerade Educator

Problem 19

Which among rhese is an ozonidc?
(a) $\mathrm{Cr}_{2} \mathrm{O}_{3}$
(b) $\mathrm{KO}_{5}$
(c) $\mathrm{NII}_{4} \mathrm{O}_{3}$
(d) Borh (b) and (c)

Narayan Hari

Numerade Educator

Problem 20

"lhe $\mathrm{H}-\mathrm{O}-\mathrm{O}$ bond angle in $\mathrm{H}_{2} \mathrm{O}_{2}$ is
(a) $97^{\circ}$
(b) 106
(c) $104.5^{\circ}$
(d) $109.28^{\circ}$

Narayan Hari

Numerade Educator

Problem 21

$\mathrm{K}_{4}\left[\mathrm{Fc}(\mathrm{CN})_{6}\right]$ rcacrs wirh oronc to give
(a) $\mathrm{KNO}_{3}$
(b) $\mathrm{K}_{3}\left[\mathrm{Fc}(\mathrm{CN})_{C}\right]$
(c) $\mathrm{F} \mathrm{c}_{2} \mathrm{O}_{3}$
(d) $\mathrm{Ec}(\mathrm{O} \|)_{2}$

Narayan Hari

Numerade Educator

Problem 22

The term thio cantiot be used ifi the name of which of the follow ing compound?
(a) NaSC.N
(b) $\mathrm{NaCS}_{3}$
(c) $\mathrm{Na}_{2} \mathrm{SO}_{3}$
(d) $\mathrm{Na}_{2} \mathrm{~S}_{2} \mathrm{O}_{3}$

Narayan Hari

Numerade Educator

Problem 23

The ratio of rhe gases obrainced on dehydration of $11 \mathrm{COO} 1 \mathrm{t}$ and $\mathrm{H}_{2} \mathrm{C}_{2} \mathrm{O}_{4}$ by conc. $\mathrm{II}_{2} \mathrm{SO}_{4}$ is
(a) $2 ; 1$
(b) $1: 2$
(c) $3: 1$
(d) $1: 3$

Narayan Hari

Numerade Educator

Problem 24

The element evolving two different gases on reaction with cone. sulphuric acid is
(a) $\mathrm{S}$
(b) $C$
(c) Sn
(d) $\mathrm{P}$

Narayan Hari

Numerade Educator

Problem 25

Jdentify rhe incorrcet starcmenr with respecr ro ozonc.
(a) Ozone is more rcactive than oxygcn.
(b) Ozonc is formed in rhe upper armosphcre by $a$ phorochcmical reacrion involving dioxygen.
(c) Ozone prorccrs the carth's inhabirants by absorbing $\gamma$ -radiations.
(d) Ozonc is diamagncric whercas dioxygen is paramagncric.

Narayan Hari

Numerade Educator

Problem 26

"he reaction in the Kipp's apparatus stops on closing the outlet because
(a) Gas starts coming our from top.
(b) The acid becomes weak.
(c) The contacr berwcen sulphidc and the acid is broken by the prcscnce of gas collecred in the frcc surfacc of the midtlle chamber.
(d) A prorcctive film is formcel on iron sulphidc.

Narayan Hari

Numerade Educator

Problem 27

The final acid obrained during rhe manufacrure of $\mathrm{H}_{2} \mathrm{SO}_{4}$ by contacr proccss is
(a) $\mathrm{H}_{2} \mathrm{SO}_{4}$, dil.)
(b) $\mathrm{H}_{2} \mathrm{~S}_{2} \mathrm{O}_{+}$
(c) $\mathrm{H}_{2} \mathrm{SO}_{4}$ (conc.)
(d) $\mathrm{H}_{2} \mathrm{SO}_{4}(\mathrm{dil})$

Narayan Hari

Numerade Educator

Problem 28

When sulphur is boilcd with $\mathrm{Na}_{2} \mathrm{SO}_{3}$ solurion, the compound formed is
(a) sodium sulphide
(b) sorlium sulphare
(c) sodium persulphate
(d) sodium thiosulphate

Narayan Hari

Numerade Educator

Problem 29

Sulphuric acid reacts wirh $\mathrm{PCl}_{5}$ ro give
(a) Sulphuryl chluride
(b) Sulphur tetrachloride
(c) Thionyl chloride
(d) Sulphur monochloride

Narayan Hari

Numerade Educator

Problem 30

Conccntraret nitric acid reacts with iodinc to give
(a) $\mathrm{HOIO}_{2}$
(b) $\mathrm{HOIO}_{3}$
(c) HOI
(d) HI

Narayan Hari

Numerade Educator

Problem 31

The product obtained at anode when $50 \% \mathrm{H}_{2} \mathrm{SO}_{4}$ aqueous solution is electrolyzed using platinum electrodes is
(a) $\mathrm{I} \mathrm{I}_{2}$
(b) $\mathrm{O}_{2}$
(c) $11_{2} \mathrm{SO}_{3}$
(t) $11_{2} \mathrm{~S}_{2} \mathrm{O}_{s}$

Narayan Hari

Numerade Educator

Problem 32

In the preparation of sulphuric acid, $\mathrm{V}_{2} \mathrm{O}_{3}$ is used in the reaction which is
(a) $\mathrm{N}_{2}+311_{2} \quad 2 \mathrm{~N} 1 \mathrm{I}_{3}$
(b) $\mathrm{SO}_{2}+11, \mathrm{O} \quad>11_{2} \mathrm{SO}_{3}$
(c) $2 \mathrm{SO}_{2}+\mathrm{O}_{2} \longrightarrow 2 \mathrm{SO}_{3}$
(d) $\mathrm{S}+\mathrm{O}_{2} \longrightarrow \mathrm{SO}_{2}$

Narayan Hari

Numerade Educator

Problem 33

$\mathrm{H}_{2} \mathrm{SO}_{1}$ has a very corrosive acrion on skin thccause
(a) Ir acrs as oxidizing agcnt.
(b) It acts as dehycirating agent and absorption of warer is highly exochermic.
(c) It reacts with proceins.
(d) $\operatorname{Both}(\mathrm{a}) \mathrm{and}(\mathrm{b})$.

Narayan Hari

Numerade Educator

Problem 34

By rhe action of hor conc. $11_{2} \mathrm{SO}_{4}$, phosphorous changcs to
(a) phosphorous acid
(b) orthophosphoric acid
(c) mctaphosphoric acid
(d) pyrophosphoric acid

Narayan Hari

Numerade Educator

Problem 35

Formula of ioslinc phosphatc is
(a) $\mathbf{I}_{2}\left(\mathrm{PO}_{1}\right)_{3}$
(b) $\mathrm{I}_{3} \mathrm{PO}_{\text {i }}$
(c) $\mathrm{I}_{2} \mathrm{PO}_{1}$
(d) $\mathrm{IPO}_{.4}$

Supratim Pal

Numerade Educator

Problem 36

Chlorine water on cooling deposits greenishyellow crystals of
(a) $C 1_{2} .8 \mathrm{H}_{2} \mathrm{O}$
(b) $\mathrm{Cl}_{2^{-}} 3 \mathrm{H}_{2} \mathrm{O}$
(c) $\mathrm{Cl}_{2} \cdot 2 \mathrm{H}_{2} \mathrm{O}$
(d) $\mathrm{Cl}_{2^{-}} \mathrm{H}_{2} \mathrm{O}$

Narayan Hari

Numerade Educator

Problem 37

There is no $\mathrm{S}-\mathrm{S}$ bond in
(a) $\mathrm{S}_{2} \mathrm{O}_{4}{ }^{2}$
(b) $\mathrm{S}_{2} \mathrm{O}_{5}{ }^{2}$
(c) $\mathrm{S}_{2} \mathrm{O}_{5}^{2}$
(d) $\mathrm{S}_{2} \mathrm{O}_{2}^{2}$

Narayan Hari

Numerade Educator

Problem 38

Which one is noe a characeriscie of ozone, $\mathrm{O}_{3} ?$
(a) The O-O distances are not equivalent.
(b) It is a nonlinear triatomic system.
(c) Ir is made by passing an electrical discharge chrough oxygea.
(d) It is an extremely powerful oxidizing agent.

Narayan Hari

Numerade Educator

Problem 39

In the manufacturc of sulphuric acid by contact proccss, Tyntall hox is uscel ro
(a) rcmove impurirics
(b) filrer dust particlcs
(c) test the presence of dust particles
(d) convert $\mathrm{SO}_{2}$ co $\mathrm{SO}_{3}$

Narayan Hari

Numerade Educator

Problem 40

Which compountl acts as an oxidizing as well as reducing agent?
(a) $\mathrm{SO}_{2}$
(b) $\mathrm{MnO}_{2}$
(c) $\mathrm{Al}_{2} \mathrm{O}_{3}$
(d) $\mathrm{CrO}_{3}$

Narayan Hari

Numerade Educator

Problem 41

Conc. $\mathrm{H}_{2} \mathrm{SO}_{4}$ is diluted
(a) By adding glacial acetic acid in $\mathrm{H}_{2} \mathrm{SO}_{4}$
(b) By addiag $\mathrm{H}_{2} \mathrm{SO}_{4}$ in water
(c) By atding warcr in II $\mathrm{I}_{2} \mathrm{OO}_{A}$
(d) Nonc of rhesc

Narayan Hari

Numerade Educator

Problem 42

In which of rhe following reaction, conc. $11_{2} \mathrm{SO}_{4}$ acts only as an acid?
(a) $\mathrm{P}_{4}+11_{2} \mathrm{SO}_{4}$
(b) $\mathrm{Cu}+\mathrm{H}_{2} \mathrm{SO}_{4} \longrightarrow$
(c) $\mathrm{Nal}+\mathrm{MnO}_{2}+\mathrm{II}_{2} \mathrm{SO}_{A}$
0
(tl) $\mathrm{NaBr}+\mathrm{H}_{2} \mathrm{SO}_{-1}$
1

Narayan Hari

Numerade Educator

Problem 43

Which of the following pairs of acids are called super acids?
(a) $\mathrm{FSO}_{3} \mathrm{H}$ and $\mathrm{C} 1 \mathrm{SO}_{3} \mathrm{H}$
(b) $\mathrm{FSO}_{3} \mathrm{H}$ and $\mathrm{Sb} \mathrm{F}_{5}$
(c) $\mathrm{HClO}_{4}$ and $\mathrm{H}_{2} \mathrm{SO}_{4}$
(d) $\mathrm{SbF}_{0}$ and $\mathrm{HClO}_{4}$

Narayan Hari

Numerade Educator

Problem 44

Which of the following is nor an cxample of oxyacits of sulphur?
(a) $\mathrm{HI}_{2} \mathrm{SO}_{3}$
(b) $\mathrm{SO}_{3}$
(c) $\mathrm{H}_{2} \mathrm{SO}_{4}$
(d) $11_{2} \mathrm{~S}_{2} \mathrm{O}_{3}$

Narayan Hari

Numerade Educator

Problem 45

During bleaching of chlorinc, an anrichlor is uscd ro
(a) Rcmove grcascs from rhe fibre.
(b) Liberate oxyger.
(c) Eliminate last traces of bleaching agenc.
(d) Enhance bleaching action.

Narayan Hari

Numerade Educator

Problem 46

Hypo is used in photography for
(a) developing piccure
(b) picrurc printing
(c) colouring of rhe picrure
(d) fixarion of rhe picrure

Narayan Hari

Numerade Educator

Problem 47

Complete hydrolysis of $\mathrm{XeI}_{6}$ forms a compound
(a) which explodes violently in dry state. Here the compoutid (a) is
(a) $\mathrm{XeO}_{2} \mathbf{I}_{2}$
(b) $\mathrm{XeO}_{3}$
(c) $\mathrm{XeOF}_{4}$
(d) None of these

Narayan Hari

Numerade Educator

Problem 48

The srruerure of sulphurie acid is similar to
(a) Ascorbic acid
(b) Telluric acid
(c) Sclcnic acid
(d) Both (b) ant $(c)$

Narayan Hari

Numerade Educator

Problem 49

$\mathrm{SF}_{b}$ is unreactive towards water because
(a) Sulphur has very small size.
(b) Tuorine is the most electronegative element.
(c) ' $\mathrm{S}$ ' shows the oxidation state of $+6$.
(d) Duc ro srcric hindrance warce molccule cannor atrack on $\mathrm{S}$ atom in $\mathrm{SF}_{6}$

Narayan Hari

Numerade Educator

Problem 50

Which of the following is the strongest acid?
(a) $\mathrm{ClO}_{3}(\mathrm{OH})$
(b) $\mathrm{ClO}_{2}(\mathrm{OH})$
(c) $\mathrm{SO}\left(\mathrm{OH}_{2}\right.$
(d) $\mathrm{SO}_{2}(\mathrm{OH})_{2}$

Narayan Hari

Numerade Educator

Problem 51

The products of the chemical rcaction berwccn $\mathrm{Na}_{2} \mathrm{~S}_{2} \mathrm{O}_{3}, \mathrm{Cl}_{2}$ and $11{1}_{2} \mathrm{O} \mathrm{arc}$
(a) $\mathrm{S}+\mathrm{HCl}+\mathrm{Na}_{2} \mathrm{SO}_{4}$
(b) $\mathrm{S}+\mathrm{NaClO}_{3}+\mathrm{I} \mathrm{I}_{2} \mathrm{O}$
(c) $\mathrm{S}+11 \mathrm{Cl}+\mathrm{Na}_{2} \mathrm{~S}$
(d) $\mathrm{S}+\mathrm{HCl}+\mathrm{Na}_{2} \mathrm{SO}_{3}$

Narayan Hari

Numerade Educator

Problem 52

The caralysts uscet in rhe manufacrure of $\mathrm{H}_{2} \mathrm{SO}_{4}$ by contact process and lead chambcr proccss arc, rcspecrively
(a) $\mathrm{V}, \mathrm{O}_{5}$ and plarinum asbesros
(b) Oxidcs of nirrogcn and $\mathrm{V}_{2} \mathrm{O}_{5}$
(c) $\mathrm{V}_{2} \mathrm{O}_{5}$ and axides of ritrogen
(d) $\mathrm{V}_{2} \mathrm{O}_{3}$ and $\mathrm{Cu}_{2} \mathrm{Cl}_{2}$

Narayan Hari

Numerade Educator

Problem 53

How woulsd one synthesisc a perchlorarc salt?
(a) Oxiclarion of a solurion of chlorare salt by a pcrbromare salr,
(b) Elcctrolyric oxic?ation of a solution of hypochlorite salr.
(c) Elccrolytic oxidarion of a solurion of chlorirc salt.
(d) Elcetrolytie oxiclarion of a solurion of chlorare salf,

Narayan Hari

Numerade Educator

Problem 54

In Deacon's process for the marufacture of $\mathrm{Cl}_{2}$ the incermediate formed is
(a) $\mathrm{Cu}_{2} \mathrm{Cl}_{2} \cdot \mathrm{Cu}_{2}(\mathrm{OH})_{2}$
(b) $\mathrm{Cu}_{2} \mathrm{OCl}_{2}$
(c) $\mathrm{CuOCl}_{2}$
(d) $\mathrm{Cu}_{2} \mathrm{O}_{2} \mathrm{Cl}_{2}$

Narayan Hari

Numerade Educator

Problem 55

The compound which gives off oxygea on moderate heating is
(a) cupric oxiclc
(b) mcrcuric oxidc
(c) zinc oxicle
(d) aluminium oxitic

Narayan Hari

Numerade Educator

Problem 56

In which of the following pairs, the two species are isostructural?
(a) $\mathrm{SF}_{4}$ and $\mathrm{XeF}_{4}$
(b) $\mathrm{SO}_{3}^{2}$ and $\mathrm{NO}_{3}$
(c) $\mathrm{BE}_{3}$ and $\mathrm{NF}_{3}$
(d) $\mathrm{BrO}_{3}$ and $\mathrm{X} \mathrm{CO}_{3}$

Narayan Hari

Numerade Educator

Problem 57

Choose the correct statement regarding ozone.
(a) $\mathrm{O}_{3}$ is a good oxidizing agent.
(b) $\mathrm{O}_{3}$ is an unstablc, dark bluc diamagnctic gas.
(c) $\mathrm{O}_{3}$ is toxic and have charactcrisric sharp smell.
(ct) All of thcse.

Narayan Hari

Numerade Educator

Problem 58

Laughitog gas cannot be used in which of the following?
(a) In the preparation of hydrazoic acid
(b) $\mathrm{As}$ a fuel for rockets
(c) $\Lambda \mathrm{s}$ an araesthetic:
(d) $\mathrm{As}$ a propellanr for whippcel ice-cream

Narayan Hari

Numerade Educator

Problem 59

Which of rhe following meral nirrare docs nor give $\mathrm{NO}_{2}$ on hearing?
(a) LiNO $_{5}$
(b) $\mathrm{Mg}\left(\mathrm{NO}_{3}\right)_{2}$
(c) $\mathrm{NaNO}_{3}$
(d) $\Lambda g \mathrm{NO}_{3}$

Narayan Hari

Numerade Educator

Problem 60

Which of rhesc srarcmonrs is/arc corrccr?
(a) Conc, $11 \mathrm{NO}_{5}$ reacrs with Sn ro give $11_{2} \mathrm{SnO}_{-7}$
(b) Cold and highly conc. IINO $_{3}$ reacrs wirh copyer ro give $\mathrm{N}_{2}$.
(c) Cold and very dilute HNO $_{3}$ reacts with zine to give ammonium nitrate.
(d) $\Lambda \|$ are correct.

Narayan Hari

Numerade Educator

Problem 61

Given that hypohalous acids form by the following reaction
$$
\begin{aligned}
\mathrm{X}_{2}(\mathrm{aq})+\mathrm{H}_{2} \mathrm{O}(1) \rightleftharpoons & \mathrm{HOX}(\mathrm{aq})+\mathrm{H}^{\prime}(\mathrm{aq}) \\
&+\mathrm{X}(\mathrm{a} q)
\end{aligned}
$$
Which of the following changcs will incrcasc the yicla of I IOX?
(a) $\Lambda \mathrm{dd} \mathrm{X}^{-}$
(b) $\Lambda \mathrm{dd}$ water
(c) Increase rhe pIl
(ct) Dccrcasc rhe ptI

Narayan Hari

Numerade Educator

Problem 62

The perccnrage by wcighr of hydrogen in $1 \mathrm{I}_{2} \mathrm{O}_{2}$ is
(a) $6.50$
(b) $5.88$
(c) 25
(d) 50

Narayan Hari

Numerade Educator

Problem 63

'S' on reaction with conc, $11 \mathrm{NO}_{3}$ givcs $(\mathrm{P})$ and on rcacrion wirh $\mathrm{NaOH}$ givcs (Q). $\left(\mathrm{P}_{2}\right.$ ant $\mathrm{l}$ arc, rcspcctivcly
(a) $\mathrm{H}_{2} \mathrm{SO}_{4}, \mathrm{~N}_{\mathrm{a}_{2} \mathrm{~S}} \mathrm{O}_{4}$
(b) $\mathrm{H}_{2} \mathrm{~S}_{2} \mathrm{O}_{y}, \mathrm{Na}_{2} \mathrm{~S}_{2} \mathrm{O}_{3}$
(c) $\mathrm{NO}_{2}, \mathrm{Na}_{2} \mathrm{~S}$
(d) $11_{2} \mathrm{SO}_{3}, \mathrm{Na}_{2} \mathrm{~S}_{2} \mathrm{O}_{3}$

Supratim Pal

Numerade Educator

Problem 64

Consider the following sraremcnrs
I. Aromic hydrogen is obtaitied by passing hydrogen through an electric art.
II. Hydrogea gas will not reduce heated aluminium oxide.
III. Fincly dividct palladium absorhs largc volumc of hyclrogen gas.
IV. Purc nascent hydrogcn is best obtainct thy rcacring $\mathrm{Na}$ wirh $\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OI} 1$
Which of the above statements isiare correct?
(a) I alone
(b) II alone
(c) $\mathbf{I}, \mathrm{II}$, at $\mathrm{d} \mathrm{III}$
(d) II, III and IV

Narayan Hari

Numerade Educator

Problem 65

The oxitiarion srares of sulphur in the anions $\mathrm{SO}_{3}^{2}, \mathrm{~S}_{2} \mathrm{O}_{1}^{2}$ ant $\mathrm{S}_{2} \mathrm{O}_{6}^{2}$ follow the ortlcr:
(a) $\mathrm{S}_{2} \mathrm{O}_{6}^{2-}<\mathrm{S}_{2} \mathrm{O}_{-1}^{2-}<\mathrm{SO}_{5}^{2-}$
(b) $\mathrm{S}_{2} \mathrm{O}_{\mathrm{d}}^{2-}<\mathrm{S}_{2} \mathrm{O}_{6}^{2-}<\mathrm{SO}_{3}^{2-}$
(c) $\mathrm{SO}_{3}^{2-}<\mathrm{S}_{2} \mathrm{O}_{4}^{2-}<\mathrm{S}_{2} \mathrm{O}_{6}^{2-}$
(d) $\mathrm{S}_{2} \mathrm{O}_{4}^{2}<\mathrm{SO}_{3}^{2}<\mathrm{S}_{2} \mathrm{O}_{6}^{2}$

Narayan Hari

Numerade Educator

Problem 66

Sulphur reacrs with chlorine in $1: 2$ ratio and forms $(\mathrm{X}) .(\mathrm{X})$ on hydrolysis gives a sulphur compound (Y). Whar is the hybridizex] srare of ceneral arom in rhe anion of (Y)?
(a) $\mathrm{sp}^{3} \mathrm{t}$
(b) $5 \mathrm{p}^{2}$
(c) $\mathrm{sp}^{3}$
(d) $\mathrm{sp}$

Narayan Hari

Numerade Educator

Problem 67

Consider the following substances:
$\mathrm{I}_{2} \mathrm{OF}_{2}$
$\mathrm{II}, \mathrm{Cl}_{2} \mathrm{O}$
$\mathrm{III}_{*} \mathrm{~B}_{\mathrm{r}_{2}} \mathrm{O}$
The correct sequetice of $\mathrm{X}-\mathrm{C}\}-\mathrm{X}$ bond angle is
(a) $3>2>1$
(b) $1>2>3$
(c) $2>1>3$
(d) $1>3>2$

Narayan Hari

Numerade Educator

Problem 68

When a white hygroscopic powtlcr $(\mathrm{X})$ is trcarcet wirh cold warcr, a compound $(\mathrm{Y}\rangle$ is formed which forms a whitc prccipitate wirh $\mathrm{BaCl}_{2}$ in acidic mctium. (Y) also givcs a whire amorphous prccipirare wirh ncutral $\mathrm{AgNO}_{5}$. Compound $(\mathrm{Y}\rangle$ can also be obtaincrt by hoaring $11_{3} \mathrm{PO}_{1}$ here $(\mathrm{X})$ and $(Y)$, arc rcspecrively
(a) $\mathrm{P}_{4} \mathrm{O}_{10}$ and $1 \mathrm{I}_{3} \mathrm{PO}_{2}$
(b) $\mathrm{P}_{4} \mathrm{O}_{10}$ and $11 \mathrm{PO}_{3}$
(c) $\mathrm{P}_{4} \mathrm{O}_{6} \mathrm{and} \mathrm{HI}_{3} \mathrm{PO}_{2}$
(d) $\mathrm{N}_{2} \mathrm{O}_{5}$ and $\mathrm{H} \mathrm{IPO}_{3}$

Narayan Hari

Numerade Educator

Problem 69

\Lambda certain compound $(\mathrm{X})$ when treated with c.Tpper sulphate solution yields a browri precipitate. On adding hypo solution, the precipitate turns white. "Tie compound is
(a) KI
(b) $\mathrm{K}_{3} \mathrm{PO}_{4}$
(c) KBr
(d) $\mathrm{K}_{2} \mathrm{CO}_{3}$

Narayan Hari

Numerade Educator

Problem 70

Among rhe following molcculcs
I. $\mathrm{X} \mathrm{cO}_{3}$
II. $\mathrm{XcOE}_{\text {t }}$
III. $\mathrm{XcF}_{6}$
Those having same number of lone puirs on $\mathrm{X} \mathrm{c}$ arc
(a) (II) and (III) oaly
(b) (I) ard (ID orly
(c) (1), (II) alnd (III) only
(d) (I) ant (III) only

Narayan Hari

Numerade Educator

Problem 71

If $1000 \mathrm{cc}$ of air is passed again and again ovct heared $\mathrm{Cu}$ and $\mathrm{Mg}$ till rhe reduction in volume srops the volume finally obraincd would be approximarely
(a) $800 c$
(b) $200 \mathrm{ce}$
(c) $10 \mathrm{ce}$
(d) zero $c \mathrm{C}$

Narayan Hari

Numerade Educator

Problem 72

Boiling of dil. HCl acid does not increase its concentration beyond $22.2$ per cent because hydrochlorie acid
(a) forms a constant boiling mixcure.
(b) forms a saturated solution at this concentration.
(c) is very volatile.
(d) is cxtrcmely soluble in watcr.

Narayan Hari

Numerade Educator

Problem 73

A compound $(A)$ of $S, C l$ and $O$ has vapour densiry of $67.5$. Ir reacrs with warer ro form rwo acids and reacts with $\mathrm{KO} 11$ ro form rwo salts $(\mathrm{B})$ and $(C)$, while (B) gives whire precipirate with $\mathrm{AgNO}_{3}$ solution, (C) gives white precipirare with $\mathrm{BaCl}_{2}$ solurion. Idenrify (A) here.
(a) $\mathrm{SOCl}_{2}$
(b) $\mathrm{SO}_{2} \mathrm{Cl}_{2}$
(c) $\mathrm{SO}_{2} \mathrm{Cl}$
(d) None of these

Vishal Sharma

Numerade Educator

Problem 74

$\mathrm{H}_{2} \mathrm{SO}_{4}$ is not used for the preparatian of $\mathrm{CO}_{2}$ from marble chips because
(a) calcium sulphare is spatingly soluble and ger deposited on marble chips and srops the reaction
(b) ir docs nor rcact.
(c) the rcacrion is vigorous.
(d) huge amount of hear is cvolved.

Narayan Hari

Numerade Educator

Problem 75

Oxalic acid is hicarcd with conccntratot $1 \mathrm{I}_{2} \mathrm{SO}_{A^{n}}$ When the rcsulranr gascs arc passct ovcr rod hor carhon, $\mathrm{X}$ is otraincd. $\mathrm{X}$ is
(a) CO
(b) $\mathrm{CO}_{2}$
(c) $\mathrm{C}_{2} \mathrm{H}_{1}$
(d) CIH

Narayan Hari

Numerade Educator

Problem 76

In che following sequence of reaction the product formed $(\Lambda)$ and the necessary conditions $(B)$ are
PbS $\quad \begin{aligned}&\text { Heat } \\&\text { in ar }\end{aligned}>+\mathrm{Pl} \mathrm{S} \quad \mathrm{B} \quad>\mathrm{Pb}+\mathrm{SO}_{2}$
(a) $\mathrm{PbSO}_{1}$ and high tempcrarurc, abscncc of air
(b) $\mathrm{Pb} O$ and high temperature, absence of air
(c) $\mathrm{PbO}$ and low cemperature
(d) both (a) and (b)

Narayan Hari

Numerade Educator

Problem 77

$\mathrm{KClO}_{5}$ on reaction wich $\mathrm{SO}_{2}$ gives $(\mathrm{X})$ and on reaccion with conc. $\mathrm{H}_{2} \mathrm{SO}_{1}$ gives $(\mathrm{Y}),(\mathrm{X})$ and
(Y) are
(a) $\mathrm{KCl}, \mathrm{HClO}_{3}$
(b) $\mathrm{KCl}, \mathrm{HClO}_{2}$
(c) KCl, HCIO $_{4}$
(d) $\mathrm{Cl}_{2}, \mathrm{ClO}_{2}$

Vishal Sharma

Numerade Educator

Problem 78

Which of the following palirs arc corrccty marchcd hcrc?
I. Solvay proccss ....... Manufacrure of sodium carbonare
II, Bacycr proccss . ...... Manufacrure of sulphuric acid
III. Habcr proccss ...... Manufacturc of smmonia
IV. Birkland-Eyrde process ..... Manufacrure of nicric acid Scleet the corrcer answer:
(a) 1,2 and 4
(b) 1,3 and 4
(c) 2,3 and 1
(d) 2 and 3 only

Vishal Sharma

Numerade Educator

Problem 79

The compound in which the number of $\mathrm{d} \pi-\mathrm{p} \pi$ bonds are equal to these present in $\mathrm{ClO}_{+}^{-}$
(a) $\mathrm{XeO}_{\mathrm{d}}$
(b) $\mathrm{Xe} \mathrm{F}_{6}$
(c) $\mathrm{XcO}$
(d) $\mathrm{XcF}_{3}$

Narayan Hari

Numerade Educator

Problem 80

Consider the following transformations:
1. $\mathrm{X}_{\mathrm{C}} \mathrm{F}_{6}+\mathrm{NaF} \quad>$ Na $\left[\mathrm{XeF}_{7}\right]$
2. $2 \mathrm{PCl}_{3}(\mathrm{~s}) \quad>\left[\mathrm{PCl}_{4}\right]\left[\mathrm{PCl}_{6}\right]$
3. $\left[\mathrm{Al}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{3}+11_{2} \mathrm{O} \quad>\left[\mathrm{Al}\left(11_{2} \mathrm{O}\right)_{5}\right.$
$\mathrm{O} \mathrm{H}]^{2}+11 \mathrm{O}$
Pessible transformations are
(a) 1,2 and 3
(b) 1 and 3 only
(c) 1 and 2 only
(d) 2 only

Narayan Hari

Numerade Educator

Problem 81

Consider the two reacrions:
I. $\mathrm{H}_{2} \mathrm{O}_{2}+1 \mathrm{I}_{2} \mathrm{~S} \quad>\mathrm{S}+21 \mathrm{I}_{2} \mathrm{O}$
II. $\mathrm{H}_{2} \mathrm{O}_{2}+\mathrm{O}_{3} \longrightarrow 2 \mathrm{O}_{2}+\mathrm{H}_{2} \mathrm{O}$
Here, $\mathrm{H}_{2} \mathrm{O}_{2}$ acts as
(a) Reducing in both (T) and (II)
(b) Oxidizing in borh (I) and (II)
(c) Oxidizing in (I) and reducing in (II)
(d) Reducing in (I) and oxidizing in (II)

Narayan Hari

Numerade Educator

Problem 82

In which of the following pairs both members show reducing property but not oxidizing property?
(a) $\mathrm{H}_{3} \mathrm{PO}_{2}, \mathrm{H}_{2} \mathrm{~S}$
(b) $\mathrm{PH}_{3}, \mathrm{H}_{2} \mathrm{~S}$
(c) $11_{2} \mathrm{~S}, 11_{2} \mathrm{O}_{2}$
(d) $\mathrm{SO}_{2}, \mathrm{Na}_{2} \mathrm{~S}_{2} \mathrm{O}_{3}$

Narayan Hari

Numerade Educator

Problem 83

The oxidarion srare of xenon arom in $\mathrm{X} \mathrm{c} \mathrm{F}_{s}$, $\mathrm{HX}_{\mathrm{c} \mathrm{O}}_{4}, \mathrm{Na}_{4} \mathrm{X} \mathrm{cO}_{6}$ are, rcspecrively
(a) $+i,+6,+8$
(b) $+1,+6,+6$
(c) $+1,+6,+7$
(d) $+1,+5,+8$

Vishal Sharma

Numerade Educator

Problem 84

$\Lambda$ reaction mixture was prepared at $25^{\circ} \mathrm{C}$ by filling a $1.0$ litre nickel vessel with $\mathbf{F}_{2}$ gas at 8 atm and Xe gas at $1.7 \mathrm{~atm}$. The reaction mixture was maintained at $100^{\circ} \mathrm{C}$ for one hour. Then it was cooled to $25^{\circ} \mathrm{C}$ and the contents of the nickel container were analysed. All the xenon gas had reacted to form a solid $\mathrm{Xe}-\mathrm{F}$ compound, but some of the fluarine gas had not reacted. The pressure of the $\mathrm{F}_{2}$ gas is now $1.6 \mathrm{~atm}$. What formula would you propose for the xenon-fluorine compound?
(a) $\mathrm{XeF}_{2}$
(b) $\mathrm{XcF}_{4}$
(c) $\mathrm{XeF}_{6}$
(d) Nonc of thesc

Alkendra Singh

Numerade Educator

Problem 85

A cerrain compound when burnr gave threc oxides. The first rurncd lime warer milky, rhe sccond rurned cobalt chloride paper pink and the rhird formed an aqueous solution of $\mathrm{pII}$ 3 ncarly. The elements prcsenr in the compound are
(a) $\mathrm{C}, \mathrm{H}, \mathrm{Ca}$
(b) $C, H, S$
(c) $\mathrm{C}, \mathrm{H}, \mathrm{N}_{\mathrm{a}}$
(d) $C, 5,0$

Narayan Hari

Numerade Educator

Problem 86

In the reaction $\Lambda+2 \mathrm{~B}+\mathrm{H}_{2} \mathrm{O} \longrightarrow \mathrm{C}+2 \mathrm{D}$, if
$\mathrm{A}$ is $\mathrm{HNO}_{2}$ and $\mathrm{C}$ is $\mathrm{NH}_{2} \mathrm{OH}$ then $\mathrm{B}$ and $\mathrm{D}$, ate respectively
(a) $\mathrm{H}_{2} \mathrm{SO}_{4}$ and $\mathrm{SO}_{3}$
(b) $\mathrm{H}_{2} \mathrm{SO}_{6}$ and $\mathrm{H}_{2} \mathrm{SO}_{3}$
(c) $11_{2} \mathrm{SO}_{3}$ and $11_{2} \mathrm{SO}_{4}$
(d) $11_{2} \mathrm{SO}_{3}$ and $\mathrm{SO}_{2}$

Narayan Hari

Numerade Educator

Problem 87

Artarge the acids (I) $\mathrm{H}_{2} \mathrm{SO}_{y}$, II) $\mathrm{H}_{3} \mathrm{PO}_{3}$ and (III) $\mathrm{HClO}_{3}$ in the decreasing order of acidity.
(a) $\mathrm{I}>\mathrm{JII}>\mathrm{II}$
(b) $\mathrm{I}>\mathrm{II}>\mathrm{III}$
(c) $\mathrm{III}>\mathrm{II}>\mathbf{I}$
(d) $\mathrm{II}>\mathrm{III}>\mathrm{I}$

Narayan Hari

Numerade Educator

Problem 88

The number of sigma and pi bontls in peroxotlisulphuric acid arc, rcspcctively
(a) $A$ and 9
(b) 11 and 1
(c) 9 and $\vec{s}$
(d) $A$ and 8

Vishal Sharma

Numerade Educator

Problem 89

Which of che following oxyacids of chlorine is formed on shaking chlorine water with freshly precipicared yellow oxide of mercury?
(a) $\mathrm{IIClO}_{4}$
(b) $\mathrm{IIClO}$
(c) $1 \mathrm{IClO}_{3}$
(t) $\mathrm{H} \mathrm{IClO}_{2}$

Narayan Hari

Numerade Educator

Problem 90

Maximum pcrcaragc of available chlorinc on the basis of $\mathrm{CaOCl}_{2} \cdot 11_{2} \mathrm{O}$ formula is
(a) 10
(b) 35
(c) 49
(d) 15

Narayan Hari

Numerade Educator

Problem 91

In the following sequence of reactions $\mathrm{X}, \mathrm{Y}$ and $\angle$ are, respectively
(a) $\mathrm{KClO}_{3}, \mathrm{HPO}_{3}$ and $\mathrm{C} \mathrm{I}_{2} \mathrm{O}_{i}$
(b) $\mathrm{KClO}_{4}, \mathrm{I} \mathrm{IPO}_{3}$ and $\mathrm{Cl}_{2} \mathrm{O}_{\mathrm{r}}$
(c) $\mathrm{Cl}_{2} \mathrm{O}_{2}, \mathrm{I} \mathrm{IPO}_{3}$ and $\mathrm{KClO}_{4}$
(d) $\mathrm{KClO}_{3}, \mathrm{H}_{3} \mathrm{PO}_{4}$ and $\mathrm{Cl}_{2} \mathrm{O}_{2}$

Narayan Hari

Numerade Educator

Problem 92

\Lambdartange the following acids in the decreasing order of acid strength.
$1.11 . \mathrm{SO}_{4}$
2. $11_{3} \mathrm{PO}_{4}$
3. $11 \mathrm{ClO}_{\text {A }}$
4. $11 \mathrm{NO}_{3}$
(a) $4>2>3>1$
(b) $3>1>4>2$
(c) $1>3>4>2$
(d) $3>1>2>4$

Narayan Hari

Numerade Educator

Problem 93

A yellow metallic powder is buent in a stream of fluorine to obtain a colourless gas $(A)$ which is thermally stable and chemically inert. Its molecule has octahedral geometry. Anocher colourless gas (B) with same constituenc atoms as that of $(\Lambda)$ is obtained when sulphur dichloride is heated with sodium fluoride. Its molecule has trigonal bipyramidal geomecry, Gases $(\Lambda)$ and
(B) are, respectively
(a) $\mathrm{SF}_{6}$ and $\mathrm{SF}_{4}$
(b) $\mathrm{SF}_{4}$ and $\mathrm{SF}_{6}$
(c) $\mathrm{SF}_{4}$ and $\mathrm{S}_{2} \mathrm{~F}_{2}$
(d) $\mathrm{KCl}$ and $\mathrm{KBr}$

Vishal Sharma

Numerade Educator

Problem 94

$\mathrm{CS}_{2}$ on rcaction with $\mathrm{KN}_{3}$ followcd by rcacrion with $11_{2} \mathrm{O}_{2}$ givcs a pscudo halogen whosc strucrurc conrains
(a) Two carbon - nitrogen bonds, the charge of each nitrogen is dispersed through resonance just on other nitrogen only.
(b) No carbon - nitragen bonds and 6 lone pairs of electrons per molecule.
(c) $\mathrm{No} \mathrm{S}-\mathrm{S}$ borrd and 12 lone pairs per molecule.
(d) Onc $\mathrm{S}-\mathrm{S}$ hond and 14 lonc pairs per molcculc.

Narayan Hari

Numerade Educator

Problem 95

In analogy to $\mathrm{O}_{2}^{+}\left[\mathrm{Pt} \mathrm{F}_{6}\right]^{-}$ a compound $\mathrm{N}_{2}^{+}\left[\mathrm{PtF}_{6}\right]^{-}$
will not be formed because
(a) The I.E. of $\mathrm{N}_{2}$ gas is higher than that of $\mathrm{N}$ atom
(b) 'The L.E of $\mathrm{N}_{2}$ gas is lower than that of $\mathrm{O}_{2}$ gas
(c) 'The I.E. of $\mathrm{N}_{2}$ gas is highcr than rhar of $\mathrm{O}_{2}$ gas
(d) nonc of rhcsc

Narayan Hari

Numerade Educator

Problem 96

$\mathrm{IIClO}_{4}+\mathrm{P}_{2} \mathrm{O}_{5} \quad>(\mathrm{P})+(\mathrm{Q})$
(P) and $(Q)$ are respectively
(a) $\mathrm{Cl}_{2} \mathrm{O}_{6}, \mathrm{HPO}_{3}$
(b) $\mathrm{HClO}_{3}, \mathrm{H}_{3} \mathrm{PO}_{4}$
(c) $\mathrm{Cl}_{2} \mathrm{O}_{2}, \mathrm{IIPO}_{3}$
(d) $\mathrm{ClO}_{2}, 11_{5} \mathrm{PO}_{A}$

Narayan Hari

Numerade Educator

Problem 97

When $\mathrm{Cl}_{2}$ is passed through hot conc. $\mathrm{NaOH}$, Salts $(\Lambda)$ and $(B)$ are formed which are separated by fractional crystallization. When (B) is treated with a calculated amount of $\mathrm{KCl}$, a substance
(C) is produced. When (C) is gently heated, it disproportionates ro give (D) ard (E). When (E) is heated with conc. $\mathrm{H}_{2} \mathrm{SO}_{4}$, the strongest bronsted acid $(\mathrm{F})$ is formed which is isoelectronic with $\mathrm{H}_{2} \mathrm{SO}_{4}$. Identify F here.
(a) $\mathrm{HClO}_{2}$
(b) $\mathrm{HClO}_{5}$
(c) $\mathrm{F} \mathrm{ClO}_{1}$
(d) $11 \mathrm{Cl}$

Narayan Hari

Numerade Educator

Problem 98

In disulphurous acid or pyrosulphurous acid, the oxidation states of sulphur can be
(a) $+6$ and $-2$
(b) $+5$ and $+3$
(c) $+6$ and 0
(d) $+5$ and $-2$

Narayan Hari

Numerade Educator

Problem 99

Consider the given srarements and scleer the ser which represenrs only correcr sraremcnrs.
I. 50 per cent by mass alcoholic solution of iodinc is known as rincture of iodinc.
II. An oxohalide is always formcd from larger halogcn prcscnr during hycirolysis.

Narayan Hari

Numerade Educator

Problem 100

Which of the following does not represent the correct order?

Narayan Hari

Numerade Educator

Problem 101

The specics thar undcrgocs disproportionation in an alkaline modium arc
(a) $\mathrm{Cl}_{2}$
(b) $\mathrm{MnO}_{d}^{2-}$
(c) $\mathrm{NO}_{2}$
(d) $\mathrm{ClO}_{\text {. }}^{-}$

Narayan Hari

Numerade Educator

Problem 102

$\mathrm{SO}_{2}$ will be obtaincd in
(a) PbS + ajr
(b) $\mathrm{FcS}_{2}+\mathrm{air}$
(c) $7 \mathrm{nS}+$ air
(d) $11_{2} \mathrm{~S}+\mathrm{O}_{3}$

Narayan Hari

Numerade Educator

Problem 103

Consider the following properties of the noble gases
(a) They readily form compounds which are colourless.
(b) They gcncrally do nor form ionic compouncts.
(c) They have variahlc oxiclarion starcs in their compouncis.
(d) Gencrally, do nor form covalent compounds.

Narayan Hari

Numerade Educator

Problem 104

$\mathrm{SO}_{2}$ beluves as
(a) Reducing agenr
(b) Oxidizing agenr
(c) Titrating agent
(d) Bleaching agent

Narayan Hari

Numerade Educator

Problem 105

In which of the following molecules xenon has same number of lone pair of electrons
(a) $\mathrm{XeO}_{3}$
(b) $\mathrm{XeOF}_{4}$
(c) $\mathrm{Xe} \mathrm{F}_{2}$
(d) $\mathrm{Xe} \mathrm{F}_{4}$

Narayan Hari

Numerade Educator

Problem 106

Pick our rhe corrcet srarcmenr/s abour noble
gascs
(a) $11 \mathrm{c}$ cannor be usct in prefcrence ro nitrogcn $\left(\mathrm{N}_{2}\right)$ to dilute the oxygcn in the $g$ as cyclindcrs used by divcrs.
(b) $1 \mathrm{tc}$ is used in wearher balloons and airships.
(c) He is used in cryoscopy to obtain the very low temperarures required for superonducrivity and lasers.
(d) $\Lambda \mathrm{r}$ is used in metallurgical processes.

Narayan Hari

Numerade Educator

Problem 107

I I I can be prcparcd by which of the following merhorls
(a) $\mathrm{I}_{2}+\mathrm{II}_{2} \mathrm{~S}$
(b) $\mathrm{PI}_{3}+1 \mathrm{I}_{2} \mathrm{O}$
(c) $\mathrm{KI}+\mathrm{H}_{2} \mathrm{SO}_{2}$
$\begin{array}{ll}\text { (d) } \mathrm{II}_{3}+\mathrm{I}_{2} & \mathrm{P}_{\mathrm{r}}\end{array}$

Narayan Hari

Numerade Educator

Problem 108

Hydrogen peroxide.
(a) (jive/s silver peroxide with moist silver oxide.
(b) 'lutn/s the mixeure of aniline, $\mathrm{KClO}_{3}$ and dil. $\mathrm{H}_{2} \mathrm{SO}_{4}$ violet.
(c) Liberate/s iodine from KI.
(t) Turn/s the ritanium salr ycllow.

Narayan Hari

Numerade Educator

Problem 109

In which of the following rcactions, $11, \mathrm{O}_{2}$ acrs as an oxidant?
(a) $\mathrm{PbO}_{2}(\mathrm{~s})+\mathrm{H}_{2} \mathrm{O}_{2}(\mathrm{aq}) \quad \mathrm{PbO}(\mathrm{s})$
$+\mathrm{II}_{2} \mathrm{O}(\mathrm{I})+\mathrm{O}_{2}(\mathrm{~g})$
(b) $\mathrm{KNO}_{2}(\mathrm{ag})+1 \mathrm{I}_{2} \mathrm{O}_{2}(\mathrm{ag}) \quad \mathrm{KNO}_{3}(\mathrm{aq})$
$+11_{2} \mathrm{O}(1)$
(c) $2 \mathrm{KJ}(\mathrm{aq})+1 \mathrm{I}_{2} \mathrm{O}_{2}(a q) \quad>2 \mathrm{KOH}(\mathrm{ag})$
$+\mathrm{I}_{2}(\mathrm{~s})$
(d) $\mathrm{Na}_{2} \mathrm{SO}_{y}(\mathrm{aq})+1 \mathrm{I}_{2} \mathrm{O}_{2}(\mathrm{aq}) \longrightarrow \mathrm{Na}_{2} \mathrm{SO}_{4}(\mathrm{aq})$
$+11.0(1)$

Narayan Hari

Numerade Educator

Problem 110

Which of the following is corrccr?
(a) $\mathrm{H}_{2} \mathrm{SO}_{4}$ forms various hydrates with $\mathrm{H}_{2} \mathrm{O}$.
(b) $\mathrm{H}_{2} \mathrm{SO}_{4}$ is colourless syrupy liquid.
(c) Ir is weakly acid and reductant also.
(d) 1 lighly corrosive in natare $k$,

Narayan Hari

Numerade Educator

Problem 111

Which rwo of the following substanccs arc uscd for preparing iodized salt?
(a) $\mathbf{K I}$
(b) $\mathrm{I}_{2}$
(c) HI
(d) $\mathrm{KIO}_{5}$

Narayan Hari

Numerade Educator

Problem 112

Which one of the following reactions represents the reducing property of $\mathrm{H}_{2} \mathrm{O}_{2} ?$

Narayan Hari

Numerade Educator

Problem 113

Concenr rared sulphuric acid is
(a) Oxictizing agcnt
(b) Efflorcscent
(c) Sulphonating agent
(d) Hygroscopic

Narayan Hari

Numerade Educator

Problem 114

Which of the following scatement is/are twe correct?
(a) The hybritlisarion of $\mathrm{Xc}$ in $\mathrm{X} \mathrm{cF}_{\mathrm{d}}$ is $\mathrm{sp}^{3} \mathrm{t} \mathrm{t}^{2}$.
(b) $\mathrm{XcO}_{3}$ has four $\sigma$ and four $\pi$ bonds.
(c) In $\mathrm{ScCl}_{4}, \mathrm{Sc}$ arom is $\mathrm{sp}^{3} \mathrm{~d}^{2}$ hybridized.
(d) In $\mathrm{SF}_{4}$ sulphur atom has onc lone pair of clectron.

Narayan Hari

Numerade Educator

Problem 115

Which arc corrcer srarcments for $\mathrm{XeF}_{2} ?$
(a) It oxidizes $\mathrm{Cl}^{-}$ and $\mathrm{I}^{-} \mathrm{to} \mathrm{Cl}_{2}$ and $\mathrm{I}_{2}$, respectively.
(b) It has linear structure.
(c) Ir cannot act as $\mathrm{F}^{-}$ donor.
(d) It is hydrolyzed rapidly in aqueous solution of a base.

Narayan Hari

Numerade Educator

Problem 116

$\mathrm{X} \mathrm{CO}_{5}$, can be prcparcrd by
(a) $\mathrm{Xe} \mathrm{F}_{2} \stackrel{\text { hydrolysis }}{\longrightarrow}$
(b) $\mathrm{XeF}_{6}+\mathrm{SiO}_{2} \longrightarrow$
(c) $\mathrm{XeF}_{i}$ hyctrolysis
(d) $\mathrm{X}_{\mathrm{C}} \mathrm{F}_{6}$ hydrolysis

Narayan Hari

Numerade Educator

Problem 117

Pick out the correct starements for $\mathrm{XeF}_{6}$
(a) It reacts with $\mathrm{SiO}_{2}$ to form $\mathrm{XeOF}_{f}$.
(b) $\mathrm{XeF}_{6}$ is hydrolyred partially ro form $\mathrm{X} \mathrm{cOP}_{\mathrm{j}^{-}}$
(c) It acts as $\mathrm{T}^{\text {acceptor when treated }}$ with alkali mecal fluoride, but cannot act as $F^{-}$ donor to form complexes.
(d) On complete hydrulysis, it forms $\mathrm{XeO}_{3}$

Narayan Hari

Numerade Educator

Problem 118

Which of rhe following salts will cvolve halogen on rcacrion with conc. $\mathrm{H}_{2} \mathrm{SO}_{4}$ ?
(a) $\mathrm{NaBr}$
(b) $\mathrm{NaCl}$
(c) KI
(d) $\mathrm{CaCl}_{2}$

Narayan Hari

Numerade Educator

Problem 119

Which of the following is/are solid here?
(a) $\mathrm{XeF}_{2}$
(b) $\mathrm{XeF}_{4}$
(c) $\mathrm{XeF}_{6}$
(d) HI

Narayan Hari

Numerade Educator

Problem 120

Which among the following arc nor pcroxo acit] of sulphur?
(a) $\mathrm{H}_{2} \mathrm{SO}_{\mathrm{r}}$
(b) $11_{2} \mathrm{~S}_{2} \mathrm{O}_{\mathrm{s}}$
(c) $\mathrm{II}_{2} \mathrm{SO}_{3}$
(d) $11, \mathrm{SO}_{3}$

Narayan Hari

Numerade Educator

Problem 121

Which among the following starements islare correct here?
(a) He and Ne do not form clathrate.
(b) $\mathrm{XeT}_{4}$ and $\mathrm{SbF}_{5}$ combine to form salr.
(c) He has highest boiling point in its group.
(d) IIc diffuses rhrough rubber and polyvinyl chloriclc.

Narayan Hari

Numerade Educator

Problem 122

$\mathrm{II}_{2} \mathrm{~S}$ can be uscet as
(a) Oxidising ageat
(b) Acid
(c) Reducing agent
(d) Amphotcric species

Narayan Hari

Numerade Educator

Problem 123

Sclecr the corrcet srarcmenrs ahour $\mathrm{Na}_{2} \mathrm{~S}_{2} \mathrm{O}_{3}, 5 \mathrm{I} 1, \mathrm{O}$.
(a) It cannot used to remove stains of $\mathrm{I}_{2}$.
(b) It is also called as hypo.
(c) It can be used as antichlor.
(d) Ir is used in phocog mphy ro form complex wirh AgBr.

Narayan Hari

Numerade Educator

Problem 124

Which reagenrs give oxygen as one of the prortuct during oxictarion wirh ozonc?
(a) $\mathrm{HI}_{2} \mathrm{~S}$
(b) PbS
(c) $\mathrm{SO}_{2}$
(d) $\mathrm{Sn} \mathrm{Cl}_{2} / \mathrm{HCl}$

Narayan Hari

Numerade Educator

Problem 125

Which of the following pairs is/are correctly matched here
(a) The strongcst oxidizing agcnr-Jodinc.
(b) The mosr ractive halogcn-Fluorinc.
(c) A halogcn which is liquid at room rempcraturc-Brominc.
(d) The mosr clecroncgarive clemcnt-Fluorinc.

Narayan Hari

Numerade Educator

Problem 126

Which of these is/are not true about the oxoacids of halogens?
(a) $\Lambda$ ll of them are good reducing agents.
(b) AII of rhem arc monobasic.
(c) They may be monohasic as well as polybasic.
(d) 'They have gencral formula $11 \mathrm{XO}$.

Narayan Hari

Numerade Educator

Problem 127

Which of the following is/are correct regarding the elecrrolytic preparation of $\mathrm{H}_{2} \mathrm{O}_{2} ?$
(a) Sulphuric acid undergoes uxidation.
(b) Hydrogen is liberared at anode.
(c) 50 per cent $\mathrm{H}_{2} \mathrm{SO}_{4}$ is uscel.
(d) Lcat is uscd as carhode.

Narayan Hari

Numerade Educator

Problem 128

Select the correct staremeat(s)
(a) $\mathrm{Cl}_{2} \mathrm{O}$ and $\mathrm{ClO}_{2}$ are used as bleaching agents and as germicides.
(b) $\mathrm{ClO}_{2}$ is the anhydride of $\mathrm{HClO}_{2}$ and $\mathrm{HClO}_{3}$.
(c) $\mathbf{I}_{2} \mathrm{O}_{5}$ is usod in the quantitatirc cstimation of $\mathrm{CO}$.
(d) $\mathrm{Cl}_{2} \mathrm{O}_{7}$ is anhytridc of $\mathrm{I} 1 \mathrm{ClO}_{3}$.

Narayan Hari

Numerade Educator

Problem 129

$\mathrm{Xe} \mathrm{F}_{6}$ on reaction with $\mathrm{H}_{2}$ gives
(a) $\mathrm{XeT}_{2}$
(b) $\mathrm{XeF}_{3}$
(c) Xe
(d) HF

Narayan Hari

Numerade Educator

Problem 130

Which of rhe following compounds can not be preparcd by dincct reaction bcrwccn the constitucnr clemcnrs?
(a) $\mathrm{X} \mathrm{cO}_{2} \mathrm{~F}_{2}$
(b) $\mathrm{XcO}_{3}$
(c) $\mathrm{XeF}_{1}$
(d) $\mathrm{XeF}_{\text {f }}$

Narayan Hari

Numerade Educator

Problem 131

Which of the following species involve $\mathrm{M}-\mathrm{M}$ bond in addition to M-O bonds?
(a) Carbon suboxide
(b) Pyrosulphare jon
(c) Pyrophosphoric acid
(d) Dithionate ion

Narayan Hari

Numerade Educator

Problem 132

$\mathrm{X}_{\mathrm{c}} \mathrm{F}_{6}$ on hystrolysis gives
(a) $\mathrm{X} \mathrm{CO}_{2} \mathrm{~F}_{2}$
(b) $\mathrm{XcOF}_{i}$
(c) $\mathrm{X} \mathrm{cO}_{\mathrm{A}}$
(d) $\mathrm{XeO}_{\mathrm{s}}$

Narayan Hari

Numerade Educator

Problem 133

11ere rhe gas $(\mathrm{P})$ is
(a) $\mathrm{Cl}_{2}$
(b) $\mathrm{N}_{2} \mathrm{O}$
(c) $\mathrm{SO}_{2}$
(d) $\mathrm{H}_{2} \mathrm{O}_{2}$

Narayan Hari

Numerade Educator

Problem 134

Which is corrcer abour rhe gas (P)?
(a) Ir can acr as an oxiclant as well as a roductant.
(b) Ir has bleaching acerion.
(c) It has a linear shape.
(d) Both (a) and (b).

Narayan Hari

Numerade Educator

Problem 135

Here the colour of potassium dichomate becornes
(a) Orange to colourless
(b) Orange ro grccn
(c) Orange to ycllow
(d) Pirk to green

Narayan Hari

Numerade Educator

Problem 136

Which of the following fluoride of xenon is not possible?
(a) $\mathrm{X} \mathrm{CF}$
(b) $\mathrm{XeF}_{3}$
(c) $\mathrm{X}_{\mathrm{C}} \mathrm{F}_{1}$
(d) Borh (a) ant (b)

Narayan Hari

Numerade Educator

Problem 137

Which is not correctly matched here?
(a) $\mathrm{XeO}_{2} \mathrm{I}_{2}$ See-saw
(b) $\mathrm{X} \mathrm{c} \mathrm{F}_{6}-$ Distorrct octahedtal
(c) $\mathrm{XeO}_{3}$ tetrahedral
(d) $\mathrm{XeF}_{4}-$ Planar

Narayan Hari

Numerade Educator

Problem 138

Irl which of the following compound the rumber of $\mathrm{lp}$ and bp electrons are not given correct, respectively
(a) $\mathrm{X} \mathrm{cF}_{4}(2 \mathrm{and} 4)$
(b) $\mathrm{XcO}_{3}(\mathbf{l}$ and 3$)$
(c) $\mathrm{XeO}_{2} \mathrm{I}_{2}(2 \operatorname{and} 3)$
(d) $\mathrm{X} \mathrm{cOF}_{4}(\mathrm{~T}$ ant $\mathrm{l} 6)$

Vishal Sharma

Numerade Educator

Problem 139

Here the gas $(\mathrm{X})$ and brown residue are, respectively of
(a) $\mathrm{SO}_{2}$ and $\mathrm{Ec}_{2} \mathrm{O}_{3}$
(b) $\mathrm{SO}_{3}$ and $\mathrm{F}_{2} \mathrm{O}_{3}$
(c) $\mathrm{SO}_{3}$ and $\mathrm{FeO}$
(d) $\mathrm{SO}_{2}$ and $\mathrm{F}_{\mathrm{c}}_{5} \mathrm{O}_{1}$

Narayan Hari

Numerade Educator

Problem 140

Which form of $(\mathrm{X})$ is more stable?
(a) Alpha form
(b) Beta form
(c) Gamma form
(d) All are cqually srable

Gaurav Kalra

Numerade Educator

Problem 141

Herc, rhe solikd compound $(Y)$ is
(a) $\left(\mathrm{NH}_{2}\right)_{j} \mathrm{SO}_{3}$
(b) $\mathrm{NH}_{2} \mathrm{SO}_{3} \mathrm{H}$
(c) $\left(\mathrm{NH}_{2}\right)_{2} \mathrm{SO}_{4}$
(d) $\left(\mathrm{NH}_{4}\right)_{2} \mathrm{SO}_{3} \mathrm{H}$

Narayan Hari

Numerade Educator

Problem 142

(X) can acr as a
(a) Lcwis aciel
(b) Oxidant
(c) Reducran
(d) Borh (a) and $(b)$

Vishal Sharma

Numerade Educator

Problem 143

I Iere rhe compound $(\mathrm{M})$ is $\ldots \ldots$ and in it oxidarion numbcr of chlorinc arom arc
(a) $\mathrm{CaCl}_{2}$ with oxidarinn number of chlorine $\mathrm{as}-1$.
(b) $\mathrm{CaOCl}_{2}$ with oxidacion number of chlorine as $-1$ and $+1$
(c) $\mathrm{Ca}(\mathrm{OCl})_{2}$ with oxidation number of chlorine $a x+1$
(d) $\mathrm{Ca}\left(\mathrm{Cl} \mathrm{O}_{3}\right)_{2}$ with oxidation number of $\mathrm{d} 1 \mathrm{lo}$
rine as $+5$

Vishal Sharma

Numerade Educator

Problem 144

The reaction of compound $(\mathrm{M})$ with $\mathrm{KI}$ shows its
(a) Reducing nature
(b) Oxidising nature
(c) Basic nature
(d) Borh $(\mathrm{b})$ and $(c)$

Narayan Hari

Numerade Educator

Problem 145

Here, the compound formed rhar can he uscd as an anacsrhcric will be
(a) Laughing gas
(b) Chloroform
(c) Chloral
(d) Calcium hyd roxitic

Narayan Hari

Numerade Educator

Problem 146

Argon is used in arc welding because of irs
(a) low rcacrivity with metal.
(b) ability ro lowcr the molring poinr of moral.
(c) flammabiliry.
(d) high calorific valuc.

Narayan Hari

Numerade Educator

Problem 147

The strucrure of $\mathrm{XcO}_{3}$ is
(a) lincar
(b) planar
(c) pyramidal
(d) 'I-shaped

Vishal Sharma

Numerade Educator

Problem 148

$\mathrm{X} \mathrm{cF}_{4}$ ant $\mathrm{X} \mathrm{cF}_{6}$ arc cxpccred ro be
(a) rcelucing
(b) oxictizing
(c) unteactive
(d) strongly basic

Narayan Hari

Numerade Educator

Problem 149

(A): $\mathrm{SO}_{3}$ has a planar structure.
(R): $S$ atom in $\mathrm{SO}_{3}$ is $\mathrm{sp}^{2}$ hybridized and $\mathrm{O}-\mathrm{S}-$ O bond angle is $120^{\circ}$.

Narayan Hari

Numerade Educator

Problem 150

(A): Fresh stain of iodine on the cloth can be removed by washing ic with sodium thiosulphare solution.
(R): Sodium rhiosulphare reduces iodinc ro colourlcss iodide ion.

Narayan Hari

Numerade Educator

Problem 151

(A): $\mathrm{OF}_{2}$ is namct as oxygcn thifluorite.
$(\mathrm{R}):$ In $\mathrm{OF}_{2}$, pxygen is less electronegative than fluorine.

Narayan Hari

Numerade Educator

Problem 152

(A): Reaction of $\mathrm{SO}_{2}$ and $\mathrm{H}_{2} \mathrm{~S}$ in the presence of $\mathrm{Fe}_{2} \mathrm{O}_{3}$ caralysc gives elemerital sulphur.
(R): $\mathrm{SO}_{2}$ is a reducing agent.

Narayan Hari

Numerade Educator

Problem 153

(A): In $\mathrm{SO}_{2}$, the bond angle is $119^{\prime \prime}$ whercas in $\mathrm{SO}_{3}$, the bond angle is $120^{\circ}$
$(\mathrm{R}): \mathrm{S}$ arom in borh $\mathrm{SO}_{2}$ and $\mathrm{SO}_{3}$ is $\mathrm{sp}^{2}$ hybridreca.

Alkendra Singh

Numerade Educator

Problem 154

(A): SeCl does not have a tetrahedral structute.
(R): Se in SeCl has two lorie pairs.

Vishal Sharma

Numerade Educator

Problem 155

(A): I lytirofluoric acid is wcaker acid than horic acit.
(R): Highcr the ionizarion consrant of acicl, srrongcr is rhe acied.

Narayan Hari

Numerade Educator

Problem 156

(A): Ozone is a powerful oxidizing agerit in comparison to oxygen.
(R): Ozone is diamagtetic but oxygen is paramagnetic.

Narayan Hari

Numerade Educator

Problem 157

$(\Lambda):$ An acidified aqueous solution of $\mathrm{KClO}_{3}$ when boiled with iodine produces $\mathrm{KIO}_{3}$.
(R): $\mathrm{KClO}$, is an oxidicing agenr while $\mathrm{KIO}$, is nor.

Narayan Hari

Numerade Educator

Problem 158

(A): Sal of $\mathrm{ClO}_{3}^{-}$ amd $\mathrm{ClO}_{4}^{-}$ are well known.
(R): $\mathrm{F}$ is more elecroncgarive than $\mathrm{O}$, while $\mathrm{Cl}$ is less clecrroncgarive than $\mathrm{O}$.

Narayan Hari

Numerade Educator

Problem 159

(A): $\mathrm{H}_{2} \mathrm{SO}_{4}$ is more viscous tharl water.
(R): In $11_{2} \mathrm{SO}_{4}$ rhe $\mathrm{S}$ arom cxhibir its highest oxiclarion statc.

Vishal Sharma

Numerade Educator

Problem 160

(A): Marshell acid has sulphur atom in $+6$ oxidation state.
(R): Marshell acid contains 1-peroxy group.

Vishal Sharma

Numerade Educator

Problem 161

(A): Sulplue (IV) oxide can act as oxidizing as well reducing ageat.
(R): In sulphur (IV) oxide sulphur assumes $\mathrm{sp}^{3} \mathrm{~d}$ hybrid state.

Vishal Sharma

Numerade Educator

Problem 162

(A): In aqucous solution $\mathrm{SO}_{2}$ reacrs wirh $\mathrm{II}_{2} \mathrm{~S}$ libcrating sulphur.
(R): $S O$, is an effective reducing agent.

Narayan Hari

Numerade Educator

Problem 163

(A): The clectronic structure of $\mathrm{O}_{3}$ is
(R): Srructurc is not allowesl bocausc octet around $\mathrm{O}$ cannor be cxpancict.

Vishal Sharma

Numerade Educator

Problem 164

(A): Conccnr rarcel I $I_{2} \mathrm{SO}_{4}$ reacrs wirh $\mathrm{KCl}$ ro give Cl gas.
(R): HCl cannot be oxidized by concentration $\mathrm{H}_{j} \mathrm{SO}_{A}$

Narayan Hari

Numerade Educator

Problem 165

(A): The $\mathrm{O}-\mathrm{O}$ bond leagth in $\mathrm{H}_{2} \mathrm{O}_{2}$ is larger chan that of $O_{2} F_{2}$
(R): $11, O_{2}$ is an ionic compound.

Narayan Hari

Numerade Educator

Problem 166

(A): In $\mathrm{SO}_{2}$, rhe bond angle is $119^{\circ}$ whercas in $\mathrm{SO}_{3}$, rhe bond angle is $120^{\circ} .$
(R). $\mathrm{S}$ atom in horh $\mathrm{SO}_{2}$ and $\mathrm{SO}_{3}$ is $\mathrm{sp}^{2}$ hybridizod.

Narayan Hari

Numerade Educator

Problem 167

$(\Lambda):$ Ozone reacts with $\mathrm{BaO}_{2}$ to give $\mathrm{BaO} .$
(R); Ozonc acrs as an oxidizing agcnt in rhis reaction.

Narayan Hari

Numerade Educator

Problem 168

(A): Xcnon forms tluorides.
(R): Because $5-\mathrm{d}$ orbitals are available for valence shell expausion.

Narayan Hari

Numerade Educator

Problem 169

March rhe following:
Column I $\quad$ Column II
A. $\mathrm{H}_{3} \mathrm{PO}_{4}$
(p) Can react with $\mathrm{AgNO}_{3}$
B. HO $_{3}$
(q) In water softenter
C. $\mathrm{H}_{4} \mathrm{P}_{2} \mathrm{O}_{1}$
(r) $\mathrm{sp}^{3}$ hybridization
D. $\mathrm{H}_{5} \mathrm{PO}_{2}$
(s) Monobasic

Alkendra Singh

Numerade Educator

Problem 170

Match the following:
Column I (Manufac- Column II turing process) (Catalyst used)
A. Deacon's process for
(p) Finely divided iron $\begin{array}{ll}\text { chlorine } & \text { with molybderum }\end{array}$ as poomoter
B. Hydrogenation of
(q) Copper (II) chloride vegetable oils
C. Ostwald's process for
(r) Finely divided nickel nitric acid $\quad$ powder
D. Haber's process for
(s) Platinum gauze ammonia

Vishal Sharma

Numerade Educator

Problem 171

March rhe following:
Column I $\quad$ Column II
A. $\mathrm{H}_{2} \mathrm{SO}_{5}$
(p) $\mathrm{S}-\mathrm{S}$ linkage
B. $\mathrm{H}_{2} \mathrm{~S}_{2} \mathrm{O}_{8}$
(q) $+6$ oxidation state
C. $\mathrm{H}_{2} \mathrm{~S}_{2} \mathrm{O}_{6}$
(r) Peroxy linkage
D. $\mathrm{H}_{2} \mathrm{~S}_{2} \mathrm{O}_{3}$
(s) $-2$ oxidation stare

Vishal Sharma

Numerade Educator

Problem 172

March rhe following:
Column I Column II
A. $\mathrm{XeF}_{2}$
(p) One lone pair electron on Xe-atorn
B. $\mathrm{XeF}_{4}$
(q) $s p^{3} d$
C. $\mathrm{XeF}_{6}$
(r) $s p^{3} d^{2}$
[). $\mathrm{XCOP}_{A}$
(s) $\mathrm{sp}^{3} \mathrm{~d}^{3}$
(t) $+6$ oxidation state of xcnon

Vishal Sharma

Numerade Educator

Problem 173

Match the following:
Column I $\quad$ Column II
A. $11 \mathrm{~F}$
(p) Liquict
B. HCI
(q) Gas
C. HBr
(r) Reduciag agent
D. III
(s) Chocking smell

Himanshu Kushwaha

Himanshu Kushwaha

Numerade Educator

Problem 174

March the following:
Column I $\quad$ Column II
A, $\mathrm{P}_{4} \mathrm{O}$
(p) Whire erysralline soliel
B. $\mathrm{P}_{2} \mathrm{O}_{5}$
(y) Waxy solid with garlic smell
C. $\mathrm{N}_{2} \mathrm{O}_{3}$
(r) Blue coloured liquid
D. $\mathrm{N}_{2} \mathrm{O}_{5}(\mathrm{~s})$
(s) Coordinare bonds

Vishal Sharma

Numerade Educator

Problem 175

March rhe following:
Column I Column II
A. XeT
(p) Distorted octahedral
B. $\mathrm{XeF}_{6}$
(q) Tetrahedral
C. $\mathrm{X} \mathrm{cO}_{5}$
(r) Square planar
D. $\mathrm{XeO}_{4}$
(s) Pyramical

Vishal Sharma

Numerade Educator

Problem 176

Match the following:
Column I Column II
A. Aquecus solution of
(p) $\Lambda$ ahydrone $\mathrm{NaOCl}$
B. $\mathrm{KCLO}_{3}$
(q) Javelle water
C. $\mathrm{Mg}\left(\mathrm{ClO}_{4}\right)_{2}$
(r) Euchlorine
D. $\mathrm{Cl}_{2}$ and $\mathrm{ClO}_{2}$ mixrure
(s) Berrhelor's salr

Vishal Sharma

Numerade Educator

Problem 177

March the following:
Column I $\quad$ Column II
A. 10 volumes
(p) $5.358 \mathrm{~N}$
B. 20 volumes
(q) $3.036 \%(\mathrm{w} / \mathrm{v})$
C. 30 volumes
(r) $3.1 \mathrm{gm} \mathrm{H}_{2} \mathrm{O}_{2} / 100$
$\mathrm{ml}$ solution
D. $11.2$ volumes
(s) $1.785 \mathrm{M}$

Alkendra Singh

Numerade Educator

Problem 178

Match the following:
Column I Column II
A. Peroxide
(p) $\mathrm{C}_{3} \mathrm{O}_{2}$
B. Superoxide
(q) $\mathrm{PbO}_{2}$
C. Dioxiclc
(r) $\mathrm{KO}_{2}$
1). Suboxicle
(s) $\mathrm{II}_{2} \mathrm{O}_{2}$
(r) $\mathrm{RbO}_{2}$

Vishal Sharma

Numerade Educator

Problem 179

March the following:
Column I $\quad$ Column II (No. of lone pair electron)
\Lambda. $\mathrm{XeF}_{2}$
(p) 0
B. $\mathrm{XeF}_{4}$
(q) 1
C. $\mathrm{XeF}_{\mathrm{b}}$
(r) 2
D. $\mathrm{XcO}_{3}$
(s) 3

Vishal Sharma

Numerade Educator

Problem 180

Hydrolysis of one mole of peroxodisulphuric acid produccs
(a) rwo moles of sulphuric acid.
(b) two moles of peroxomonosulphuric acid.
(c) one mole of sulphuric acid and one mole of peraxomonosulphuric acid.
(d) one mole of sulphuric acid, one mole of peroxomonosulphuric acid and one mole of hydrogcn pcroxide.

Vishal Sharma

Numerade Educator

Problem 181

The following aciets have becn artanged in rhe order of decrasing acid strcngth. Idcntify the cortoct ordcr
(T) $\mathrm{ClOH}$, (II) $\mathrm{BrOH},(\mathrm{III}) \mathrm{IOH}$
(a) $\mathrm{I}>\mathrm{II}>\mathrm{III}$
(b) $\mathrm{II}>\mathrm{I}>\mathrm{III}$
(c) $\mathrm{III}>\mathrm{II}>\mathrm{I}$
(d) $\mathrm{I}>\mathrm{III}>\mathrm{II}$

Narayan Hari

Numerade Educator

Problem 182

Sodium thiosulphare is prepared by
(a) reducing $\mathrm{Na}_{2} \mathrm{SO}_{4}$ solution with $\mathrm{H}_{2} \mathrm{~S}$.
(b) boiling $\mathrm{Na}_{2} \mathrm{SO}_{3}$ solution with $\mathrm{S}$ in alkaline medium.
(c) neutmlizing $\mathrm{I} \mathrm{I}_{2} \mathrm{~S}_{2} \mathrm{O}_{3}$ solurion with $\mathrm{NaOll}$.
(d) boiling $\mathrm{Na}, \mathrm{SO}_{2}$ wolution with $\mathrm{S}$ in acidic medium.

Narayan Hari

Numerade Educator

Problem 183

The crirical rcmperarure of warcr is highcr rhan rhat of $\mathrm{O}_{2}$ bccause $\mathrm{th} 11, \mathrm{O}$ molccule has
(a) fewer elecrons than oxygea.
(b) rwo covalenr boncls.
(c) V-shape.
(d) dipole momcnt.

Narayan Hari

Numerade Educator

Problem 184

The geometry of $\mathrm{H}_{2} \mathrm{~S}$ and its dipole moment are
(a) angular and non-zero
(b) angular ard zero
(c) lincar and nonzero
(d) linear and zero

Narayan Hari

Numerade Educator

Problem 185

Which statement about $\mathrm{H}_{\Sigma} \mathrm{S}$ is false?
(a) It is a covalent compound.
(b) Ir is a gas wirh bat smell.
(c) It is a weak base in water.
(d) Ir is a srrongcr roducing agent rhan $\mathrm{II}, \mathrm{O} .$

Narayan Hari

Numerade Educator

Problem 186

Which of the following ions dees not have S-S linkage?
(a) $\mathrm{S}_{2} \mathrm{O}_{6}^{2-}$
(b) $\mathrm{S}_{2} \mathrm{O}_{8}^{2-}$
(c) $\mathrm{S}_{2} \mathrm{O}_{5}{ }^{2}$
(d) $\mathrm{S}_{2} \mathrm{O}_{3}^{2}$

Narayan Hari

Numerade Educator

Problem 187

Malecular shapes of $\mathrm{ST}_{4}, \mathrm{CF}_{4}$, and $\mathrm{Xe} \mathrm{F}_{+}$ are
(a) 'Ihe same, with 2,0, and 1 lone pairs of electrons, respertively.
(b) The same, wirh 1,1, and 1 lone pairs of elccrons, respecrively.
(c) Differeat, with 0,1, and 2 lone pairs of electrons, respectively.
(d) Differenc, wich 1,0, and 2 lone pairs of electrons, respectively.

Narayan Hari

Numerade Educator

Problem 188

The correct order of acidic strength is
(a) $\mathrm{Cl}_{2} \mathrm{O},>\mathrm{SO}_{2}>\mathrm{P}_{4} \mathrm{O}_{10}$
(b) $\mathrm{CO}_{2}>\mathrm{N}_{2} \mathrm{O}_{5}>\mathrm{SO}_{3}$
(c) $\mathrm{Na}_{2} \mathrm{O}>\mathrm{M}_{2} \mathrm{O}>\mathrm{Al}_{-} \mathrm{O}_{3}$
(d) $\mathbf{K}_{2} \mathrm{O}>\mathrm{CaO}>\mathrm{MgO}$

Narayan Hari

Numerade Educator

Problem 189

The number of $\mathrm{S}-\mathrm{S}$ bonds in sulphur trioxidc rrimer $\left(\mathrm{S}_{3} \mathrm{O}_{9}\right)$ is
(a) Throc
(b) Two
(c) One
(d) Zcro

Narayan Hari

Numerade Educator

Problem 190

The set with correct order of acidity is
(a) $11 \mathrm{ClO}<\mathrm{H} \mathrm{ClO}_{2}<\mathrm{HClO}_{5}<11 \mathrm{ClO}_{4}$
(b) $\mathrm{HClO}_{4}<\mathrm{HClO}_{3}<\mathrm{HClO}_{2}<\mathrm{HClO}$
(c) $11 \mathrm{ClO}<\mathrm{HClO}_{1}<\mathrm{HClO}_{5}<11 \mathrm{ClO}_{2}$
(d) $\mathrm{HClO}_{4}<\mathrm{HClO}_{2}<\mathrm{HClO}_{3}<\mathrm{HClO}$

Narayan Hari

Numerade Educator

Problem 191

The acid having $0-O$ bond is
(a) $11 \mathrm{~S}_{2} \mathrm{~S}_{2} \mathrm{O}_{3}$
(b) $1 \mathrm{I}_{2} \mathrm{~S}_{2} \mathrm{O}_{6}$
(c) $\mathrm{H}_{2} \mathrm{~S}_{2} \mathrm{O}_{g}$
(d) $\mathrm{H}_{2} \mathrm{~S}_{4} \mathrm{O}_{6}$

Narayan Hari

Numerade Educator

Problem 192

Total number of lone pair of electrons in $\mathrm{Xe}\left(\mathrm{OF}_{1}\right.$ is
(a) 0
(b) 1
(c) 2
(d) 3

Narayan Hari

Numerade Educator

Problem 193

The gas $\mathrm{O}_{3}$ (ozone) can not oxidize
(a) $\mathrm{KI}$
(b) FeSO
(c) $\mathrm{KMnO}_{4}$
(d) $\mathrm{K}_{2} \mathrm{MnO}$

Narayan Hari

Numerade Educator

Problem 194

Which species has rhe maximum number of lonc pair of clecrrons on the ccntral arom?
(a) $\left[\mathrm{I}_{3}\right]$
(b) $\mathrm{XeE}_{4}$
(c) $\mathrm{SF}_{-i}$
(d) $[\mathrm{ClO}]^{-}$

Vishal Sharma

Numerade Educator

Problem 195

The pcrcentage of p-characrer in rhe orbirals forming $\mathbf{P}-\mathbf{P}$ honds in $\mathrm{P}_{1}$ is
(a) 25
(b) 50
(c) 33
(d) 75

Vishal Sharma

Numerade Educator

Problem 196

Aqueous solution of $\mathrm{Na}_{2} \mathrm{~S}_{2} \mathrm{O}_{3}$ on reaction with $\mathrm{Cl}_{2}$ gives
(a) $\mathrm{NaOH}$
(b) NaFSO
(c) $\mathrm{Na}_{2} \mathrm{~S}_{5} \mathrm{O}_{8}$
(d) $\mathrm{NaCl}$

Vishal Sharma

Numerade Educator