Chemistry questions and answers

Chemistry Questions and Answers

Learn more about the properties, composition, and structure of substances (elements and compounds) with these Chemistry questions and answers. This Test can be used by students preparing for Chemistry in JAMB, WAEC, NECO or Post UTME.

901.

The ability of carbon to form long chains is referred to as

A.

Alkylation

B.

Acylation

C.

Carbonation

D.

Catenation

Correct answer is D

No explanation has been provided for this answer.

902.

Ammonium chloride can be separated from its mixture with common salt by

A.

Distillation

B.

Evaporation

C.

Decantation

D.

Sublimation

Correct answer is D

No explanation has been provided for this answer.

903.

The principle of column chromatography is based on th ability of the constituents to

A.

React with the solvent in the column

B.

React with each other in the solvent in the column

C.

Dissolve in each other in the column

D.

Move at different speeds in the column

Correct answer is D

No explanation has been provided for this answer.

904.

The monomer of nylon is

A.

Hydroxybenzene

B.

Hexanedioic acid

C.

Benzene -1,-4-dicarboxylic acid

D.

Ethane-1,2-diol

Correct answer is B

No explanation has been provided for this answer.

905.

In the laboratory preparation of chlorine from concentrated hydrochloric acid in the presence of potassuim tetraoxomanganate(VII) the produced is dried by passing it through

A.

Concentrated tetraoxosulphate (VI) acid

B.

Anhydrous calcium chloride

C.

Calcium oxide

D.

Sodium hydroxide

Correct answer is A

No explanation has been provided for this answer.