Jamb Chemistry 1988 Past Questions and Answers

Question 26:

• JAMB 1988

Which of the following compounds has the highest boiling point?

A. CH₃CH₂CH₂CH₂HO
B. CH₃CH₂CH₂CHO
C. CH₃CH₂CH₂CH₃
D. CH₃CH₂OCH₂CH₃

Question 27:

• JAMB 1988

Detergents have the general formula?

A. R(CH₂)_nOH
B. RSO₃^-Na⁺
C. RSO^-₂Na⁺
D. RSO₂H

Question 28:

• JAMB 1988

What process would coal undergo to give coal gas, coal tar, ammoniacal liquor and coke?

A. Steam distillation
B. Destructive distillation
C. Liquefaction
D. Hydrolysis

Question 29:

• JAMB 1988

The formula of a compound formed in a reaction between a trivalent metal M and a tetravalent non-metal X is~?

A. MX
B. M₃X₄
C. M₄X₃
D. M₃X₂

Question 30:

• JAMB 1988

2.25g of a sample of an oxide of copper on reduction gave 2.0g of copper. 2.50g of another oxide of copper on reduction also gave 2.0g of copper. These results are in accordance with the law of?

A. Constant composition
B. Conservation of matter
C. Multiple proportions
D. Definite proportions