library.cusat.ac.in CAT Chemistry PG Model Question Paper 2016 : Cochin University of Science & Technology

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Name of the Organisation : University Of Library - Cochin University of Science and Technology
Name of the Exam : Common Admission Test (CAT)
Document Type : Sample Question Paper
Year: 2016
Subject: Chemistry – PG

Website : www.library.cusat.ac.in/cat/2016/
Download Model/Sample Question Papers: http://www.indianjobtalks.com/upload...-Chemistry.pdf

CAT Chemistry PG Model Question Paper :
1) What is the empirical formula of a compound that contains 72g carbon, 18g hydrogen and 192g oxygen? (The masses of H, C and O are 1, 12 and 16)
A. CH4O4
B. CHO
C. CH3O2
D. CH4O2

2) What kind of orbitals do the nonbonding electrons of the oxygen in an alcohol occupy?
A. They occupy s orbitals
B. They occupy sp2 orbitals
C. They occupy sp orbitals
D. They occupy sp3 orbitals

3) Steam distillation would be the appropriate method of distillation for which of the following?
A. Diethyl ether and water
B. Ethyl alcohol and water
C. Aniline and sodium chloride
D. None of these

4) An organic compound (0.2g) containing carbon, hydrogen and oxygen yielded on combustion 0.14g of CO2 and 0.12g of H2O. The percentage composition of the compound is
A. C=19.90%, H=6.66%, O=74.24%
B. C=25%, H=1.66%, O=73.34%
C. C=66.7%, H=11.1%, O=22.2%
D. C=30%, H=3%, O=67%

5) Which of the following have lowest dipole moment?
A. Carbon tetrachloride
B. Chloromethane
C. Dichloromethane
D. Chloroform

6) Optical isomerism is shown by
A. n-butyl chloride
B. sec-butyl chloride
C. tert- butyl chloride
D. isobutyl chloride

7) LPG is a mixture of
A. methane+ethane
B. O2 + Acetylene
C. butane + Isobutane
D. acetylene + H2

8) Baeyer’s reagent is
A. dil KMnO4
B. HCl + ZnCl2
C. Br2 in CCl4
D. NH2NH2

9) 1,3-butadiene reacts with bromine to mainly give
A. 3,4-dibromo-1-butene
B. 4-bromo-1-butene
C. 1,4-dibromo-2-butene
D. 1-bromo-2-butene

10) Ozonolysis of 2-butyne gives
A. formic acid
B. propanoic acid
C. acetic acid
D. butanoic acid

11) Which compound would react most rapidly in an SN2 reaction?
A. CH3CH2I
B. CH2=CH-I
C. (CH3)2 CHI
D. (CH3)3CI

12) Which compound will give tert-butyl alcohol with methyl magnesium bromide?
A. Acetyl chloride
B. Acetone
C. Isopropyl alcohol
D. Acetaldehyde

13) Isopropyl alcohol can be converted to acetone by treatment with
A. HCl/ZnCl2
B. Na2Cr2O7 / H2SO4
C. NaOH
D. LiAlH4

14) Compound (A) reacts with sodium metal to form one mole of H2. The compound (A) can be
A. CH3CH2CH=CH2
B. HOCH2CH2CH2CH2OH
C. CH2=CH-CH=CH2
D. CH3CH2CH2CH2OH


15. Hydrolysis of an ester can be accomplished by
A. base-promoted hydrolysis
B. acid-catalyzed hydrolysis
C. Both of the above
D. Neither of the above

16) Diethyl malonate reacts with urea to give
A. butyric acid
B. barbituric acid
C. glutaric acid
D. mandelic acid

17) The degree of unsaturation of a fat can be determined by means of its
A. iodine number
B. octane number
C. saponification
D. melting point

18. Glycine reacts with nitrous acid to form
A. glycollic acid
B. diketopiperazine
C. methylamine
D. ethylalcohol

19. Which molecule will decolourize bromine in carbon tetrachloride most readily?
A. 1,2-dimethylcyclopropane
B. Cyclopentane
C. 1,2-dimethylcyclobutane
D. Cyclohexane

20) Uric acid on oxidation with alkaline KMnO4 forms
A. urea
B. barbituric acid
C. allantoin
D. caffeine

[Unregistered]

Please answer the below mentioned question :
What is the empirical formula of a compound that contains 72g carbon, 18g hydrogen and 192g oxygen? (The masses of H, C and O are 1, 12 and 16)
A. CH4O4
B. CHO
C. CH3O2
D. CH4O2