Organic Compounds - Jamb Chemistry Past Questions and Answers

Question 36:

• JAMB 1982

Cotton is almost pure?

A. Starch
B. Protein
C. Animal fibre
D. Celluose
E. Mineral fibre

Question 37:

• JAMB 1982

Which of the following types of reactions takes place between C₂H₄ and the halogens?

A. Substitution
B. Polymerization
C. Addition
D. Saponification
E. Oxidation

Question 38:

• JAMB 1982

Which of the following represents ethyl ethanonate?

A. CH₃CH₂CO₂CH₃
B. (CH₃CO₂)₂O
C. CH₃CH₂CO₂CH₂CH₃
D. CH₃CO₂CH₂CH₃
E. CH₃CH₂COCH₂CH₃

Question 39:

• JAMB 1982

The i.u.p.A.C name for the compound

A. 2-chloro-isopentane
B. 3-chloro-isopentane
C. 2-chloro-2-methylbutane
D. 1-chloro-2,2- dimethylpropane
E. 2-chloro-2-ethylpropane

Question 40:

• JAMB 1983

The alkanol obtained from the production of soap is

A. Ethanol
B. Glycerol
C. Methanol
D. Propanol
E. Glycol