Organic Compounds - Jamb Chemistry Past Questions and Answers

Question 201:

• JAMB 2003

The type of reaction that is peculiar to benzene is

A. Addition
B. Hydrolysis
C. Polymerization
D. Substitution

Question 202:

• JAMB 2003

Ethanol reacts with excess acidified K₂Cr₂O to produce

A. Ethanedioic acid
B. Ethanal
C. Ethylethanoate
D. Ethanoic acid

Question 203:

• JAMB 2003

A compound contains 40.0% carbon 6.7% hydrogen and 53.3% oxygen. If the molar mass of the compound is 180, find the molecular formula.
[H = 1, C = 12, O = 16]

A. CH₂O
B. C₃H₆O₃
C. C₆H₁₂O₆
D. C₆H₁₂O₃

Question 204:

• JAMB 2003

The process by which atoms are rearranged into different molecular structure in the petroleum refining process is referred to as

A. Catalytic cracking
B. Hydrocracking
C. Polymerization
D. Reforming

Question 205:

• JAMB 2003

Which of the following is found in cotton

A. Starch
B. Cellulose
C. Fat
D. Oil