Organic Compounds - Jamb Chemistry Past Questions and Answers

Question 71:

• JAMB 1986

When ethanol is heated with excess concentrated sulphuric acid, the ethanol is?

A. Oxidized to ethene
B. Polymerized to polyethene
C. Dehydrated to ethene
D. Dehydrated to ethyne

Question 72:

• JAMB 1986

Which of the following compounds is NOT formed by the action of chlorine on methane?

A. CH₃CI
B. C₂H₅CI
C. CH₂CI₂
D. CHCI₃

Question 73:

• JAMB 1986

The general formula of an alkyl halide (where X represents the halide) is?

A. C_nH_2n2X
B. C_nH_2n + ₁X
C. C_nH_2n + ₂X
D. C_nH_2nX

Question 74:

• JAMB 1986

Which of the following are made by the process of polymerization?

A. Nylon and soap
B. Nylon and artificial rubber
C. Soap and butane
D. Margarine and nylon

Question 75:

• JAMB 1986

Starch can be converted to ethyl alcohol by?

A. Distillation
B. Fermentation
C. Isomerization
D. Cracking