Organic Compounds - Jamb Chemistry Past Questions and Answers

Question 11:

• JAMB 1978

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

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

Question 12:

• JAMB 1978

Which of the following gases may not be dried with concentrated sulphuric acid?

A. HCl
B. N₂
C. Cl₂
D. SO₂
E. NH₃

Question 13:

• JAMB 1978

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 14:

• JAMB 1978

An example of an alcohol is

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

Question 15:

• JAMB 1978

The most common type of chemical reaction which alkanes undergo is

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