Organic Compounds - Jamb Chemistry Past Questions and Answers

Question 6:

• JAMB 2019

The most common type of chemical reaction which alkanes undergo is

A. Substitution
B. Addition
C. Condensation
D. Polymerisation
E. Double decomposition

Question 7:

• JAMB 2019

Two gas cylinders contain ethylene (ethene) and acetylene respectively. One test which can be used to distinguish between them is by

A. Passing each gas through bromine water
B. Passing each gas through dilute potassium permanganate solution
C. Passing each gas through silver nitrate solution
D. Treating each gas catalytically with excess hydrogen gas

Question 8:

• JAMB 2019

How many alkoxyalkanes can be obtained from the molecular formula C₄H₁₀O?

A. 4
B. 2
C. 1
D. 3

Question 9:

• JAMB 1978

When large hydrocarbon molecules are heated at high temperature in the presence of a catalyst to give smaller molecules, the process is known as

A. Disintegration
B. Polymerization
C. Cracking
D. Degradation
E. Distillation

Question 10:

• JAMB 1978

The reaction between an organic acid and an alcohol in the presence of an acid catalyst is known as;

A. Saponification
B. Dehydration
C. Esterification
D. Hydrolysis
E. Hydration