WAEC Chemistry Past Questions & Answers - Page 141

702.

The IUPAC name of C2H6COOC2,/sub>H6 is

A.

ethyethanoate

B.

ethylproanoate

C.

propylethanoate

D.

propylpropanoate

Correct answer is B

No explanation has been provided for this answer.

703.

The products of fermentation of sugar are

A.

carbon(IV) oxide and water

B.

ethanol and carbon (IV) oxide

C.

ethanol and water

D.

ethanol and enzymes

Correct answer is B

No explanation has been provided for this answer.

704.

An advantage of detergent over soap is that detergents

A.

are readily available

B.

are in powerdered from

C.

are non-biodegradable

D.

lather readily with water

Correct answer is D

Detergent lather readily with water. Soap does not lather readily with water. Soap is a good cleansing agent in soft water, in hard water it forms scum.

705.

Fact and oils are used as raw materials in the following industries except

A.

paint industry

B.

plastic industry

C.

margarine industry

D.

cosmetics industry

Correct answer is B

No explanation has been provided for this answer.