WAEC Chemistry Past Questions & Answers - Page 80

396.

Chlorine water is used as a bleaching agent because it is

A.

An acidic solution

B.

An alkaline solution

C.

An oxidizing agent

D.

A reducing agent

Correct answer is C

No explanation has been provided for this answer.

397.

The quality of electricity required to discharge 1 mole of univalent ion is

A.

9600C

B.

48250C

C.

96500C

D.

193000C

Correct answer is C

No explanation has been provided for this answer.

398.

A compound with molecular formula CH2O2 is

A.

A Carbohydrate

B.

A Carboxylic acid

C.

An alkanol

D.

An ester

Correct answer is B

No explanation has been provided for this answer.

399.

Which of the following bonds are broken when ethanol is boiled?

I. Covalent bonds
II. Ionic bonds
III. Hydrogen bonds

A.

I only

B.

II only

C.

III only

D.

I, II, III

Correct answer is C

No explanation has been provided for this answer.

400.

Which of the following salts when dissolved in water will form a solution that will change blue litmus to red?

A.

CH3COONa

B.

NH4Cl

C.

NaCl

D.

KCl

Correct answer is B

No explanation has been provided for this answer.