Question

6. Which of the following does not show variable oxidation states? a) Cu b) Mn c) Sc d) Fe 7. Which type of isomerism is shown by the given complex? \[ \left[\mathrm{Co}(\mathrm{en})_{3}\right]^{3+} \] a) Ionisation isomerism b) Optical isomerism c) Coordination isomerism d) Linkage isomerism 8. Which is used in cancer therapy? a) Zeise's salt b) \( \mathrm{Cis}- \) Platin c) EDTA d) Cyanocobalamine 9. The reagent that can be used to distinguish acetophenone and benzophenone is a) aqueous \( \mathrm{NaHSO}_{3} \) b) 2, 4-dinitrophenyl hydrazine c) \( \mathrm{I}_{2} \) and NaOH d) Fehling solution 10. Benzene diazonium chloride on hydrolysis gives: a) Chlorobenzene b) Aniline c) Benzene d) Phenol 11. The source of nitrogen in Gabriel synthesis of amines is \( \qquad \) a) Sodium nitrite, \( \mathrm{NaNO}_{2} \) b) Potassium cyanide, KCN c) Potassium phthalimide, \( \mathrm{C}_{6} \mathrm{H}_{4}(\mathrm{CO})_{2} \mathrm{~N}^{-} \mathrm{K}^{+} \) d) Sodium azide, \( \mathrm{NaN}_{3} \) 12. Hinsberg's reagent is: a) Benzene sulphonic acid b) Benzene sulphonamide c) Phenyl isocyanide d) Benzene sulphonyl chloride 13. Assertion (A): The molecularity of the reaction \( \mathrm{H}_{2}+\mathrm{Br}_{2} \rightarrow 2 \mathrm{HBr} \) appears to be 2 . Reason (R): Two molecules of the reactants are involved in the given elementary reaction.

          6. Which of the following does not show variable oxidation states?
a) Cu
b) Mn
c) Sc
d) Fe
7. Which type of isomerism is shown by the given complex?
\[
\left[\mathrm{Co}(\mathrm{en})_{3}\right]^{3+}
\]
a) Ionisation isomerism
b) Optical isomerism
c) Coordination isomerism
d) Linkage isomerism
8. Which is used in cancer therapy?
a) Zeise's salt
b) \( \mathrm{Cis}- \) Platin
c) EDTA
d) Cyanocobalamine
9. The reagent that can be used to distinguish acetophenone and benzophenone is
a) aqueous \( \mathrm{NaHSO}_{3} \)
b) 2, 4-dinitrophenyl hydrazine
c) \( \mathrm{I}_{2} \) and NaOH
d) Fehling solution
10. Benzene diazonium chloride on hydrolysis gives:
a) Chlorobenzene
b) Aniline
c) Benzene
d) Phenol
11. The source of nitrogen in Gabriel synthesis of amines is \( \qquad \)
a) Sodium nitrite, \( \mathrm{NaNO}_{2} \)
b) Potassium cyanide, KCN
c) Potassium phthalimide, \( \mathrm{C}_{6} \mathrm{H}_{4}(\mathrm{CO})_{2} \mathrm{~N}^{-} \mathrm{K}^{+} \)
d) Sodium azide, \( \mathrm{NaN}_{3} \)
12. Hinsberg's reagent is:
a) Benzene sulphonic acid
b) Benzene sulphonamide
c) Phenyl isocyanide
d) Benzene sulphonyl chloride
13. Assertion (A): The molecularity of the reaction \( \mathrm{H}_{2}+\mathrm{Br}_{2} \rightarrow 2 \mathrm{HBr} \) appears to be 2 .

Reason (R): Two molecules of the reactants are involved in the given elementary reaction.

6. Which of the following does not show variable oxidation states?
a) Cu
b) Mn
c) Sc
d) Fe
7. Which type of isomerism is shown by the given complex?

[Co(en)3]^3+

a) Ionisation isomerism
b) Optical isomerism
c) Coordination isomerism
d) Linkage isomerism
8. Which is used in cancer therapy?
a) Zeise's salt
b) Cis- Platin
c) EDTA
d) Cyanocobalamine
9. The reagent that can be used to distinguish acetophenone and benzophenone is
a) aqueous NaHSO3
b) 2, 4-dinitrophenyl hydrazine
c) I2 and NaOH
d) Fehling solution
10. Benzene diazonium chloride on hydrolysis gives:
a) Chlorobenzene
b) Aniline
c) Benzene
d) Phenol
11. The source of nitrogen in Gabriel synthesis of amines is
a) Sodium nitrite, NaNO2
b) Potassium cyanide, KCN
c) Potassium phthalimide, C6H4(CO)2 N^-K^+
d) Sodium azide, NaN3
12. Hinsberg's reagent is:
a) Benzene sulphonic acid
b) Benzene sulphonamide
c) Phenyl isocyanide
d) Benzene sulphonyl chloride
13. Assertion (A): The molecularity of the reaction H2+Br2→ 2 HBr appears to be 2 .

Reason (R): Two molecules of the reactants are involved in the given elementary reaction.

Added by Olga S.

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