WAEC Chemistry Past Questions & Answers - Page 115

571.

Which of the following raw materials is used in a plastic industry?

A.

Ethene

B.

Methane

C.

Calcium

D.

Hydrogen

Correct answer is A

No explanation has been provided for this answer.

572.

The main function of limestone in the blast furnace is to

A.

act as catalyst

B.

act as reducing agent

C.

remove impurity

D.

supply carbon (IV) oxide

Correct answer is C

No explanation has been provided for this answer.

573.

A hydrocarbon compound contains 92.3% carbon Determine its empirical formula [H = 1.00; C = 12.0]

A.

CH

B.

CH2-

C.

CH3

D.

C3H2

Correct answer is A

No explanation has been provided for this answer.

574.

Which of the following reactions is common to all hydrocarbones?

A.

Combustion

B.

Addition

C.

Polymerization

D.

Condensation

Correct answer is A

No explanation has been provided for this answer.

575.

How many isomers has C 3H 6CI 2?

A.

2

B.

3

C.

4

D.

5

Correct answer is A

No explanation has been provided for this answer.