Organic Compounds - Jamb Chemistry Past Questions and Answers

Question 1:

• JAMB 2019

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 2:

• JAMB 2019

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

Question 3:

• JAMB 2019

The IUPAC names of the compounds CH3COOH and CH2=CH2 are respectively;

A. Acetic acid and ethene
B. Ethanoic acid and ethene
C. Methanoic acid and ethylene
D. Ethanol and ethene
E. Acetic acid and ethylene

Question 4:

• JAMB 2019

Which of the following is not a member of the homologous series of the paraffins (alkanes)?

A. C₃H₈
B. C₅H₁₂
C. C₇H₁₆
D. C₁₅H₃₂
E. C₂₄H₄₈

Question 5:

• JAMB 2019

An example of an alcohol is

A. A.CCl₄
B. B.CH₃COOH
C. C.CHCl₃
D. D.C₂H₆
E. E.CH₃OH