For which of the following(s) has/have an incompletely filled orbital?
I. Cr
II. Cu+
III. H-
IV. Mg
A. I only
B. II only
C. II and III
D. I, II and IV
E. II, III and IV
2. Which of the following species is isoelectronic to [F-18]?
A. [B-15]3-
B. [C-14]4-
C. [N-15]3-
D. [O-16]2-
E. [Ne-19]+
3. Which of these compounds is most likely to be ionic?
A. BeCl2
B. BCl3
C. BrCl3
D. Br2Be
E. BaCl2
4. What intermolecular force(s) is/are present among molecules in HCl?
A. London dispersion forces only
B. dipole-dipole forces only
C. hydrogen bonding only
D. both London dispersion forces and hydrogen bonding
E. both London dispersion forces and dipole-dipole forces
2
5. Which of the responses include all of the following that can form hydrogen bonds in its pure form?
I.
II. NH4Cl III. (CH3)3N
IV.
A. I only
B. IandII
C. II and III
D. I,IIandIV
E. I, III and IV
6. What is the shape of Group 7 trihalides?
A. Trigonal planar
B. Trigonal pyramidal
C. Trigonal bipyramidal
D. See-saw
E. T-shape
7. What is the bond angle between axial group and equatorial group in trigonal bipyramidal structure?
A. 90o
B. 104.5 o
C. 107o
D. 120o
E. 180o
3
8. Which of the following is ethyl 3,4-dibromo-5-oxohexanoate?
A.
B.
C.
D.
E.
9. Which of the following statements about D-glucose is INCORRECT?
A. It is a chiral molecule.
B. It has four primary alcohol groups.
C. It can form hydrogen bond.
D. It can be reduced.
E. It can be oxidized.
10. Toxic and other adverse effects of ethanol on organs and tissues in humans are
largely a consequence of its metabolism to
A. Ethanol
B. Methanol
C. Ethanal
D. Ethanoic acid
E. Carbon dioxide
4
11. Which of the followings has/have the same chemical properties? **
I. Isotopes
II. cis/trans Isomers
III. Enantiomers
IV. Diastereomers
A. B. C. D. E.
I and III
II and III
II and IV
I, II and III I, III and IV
12. In
A. Meet
organic chemistry, MeEt is
B. Methylethane
C. Methyl Ethanoate
D. Propane
E. Pentane