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.

2,186.

Use the graph above to answer this question.If the gas is cooled, at what temperature will it start to condense?

A.

125 oC

B.

150oC

C.

175oC

D.

250oC

Correct answer is B

No explanation has been provided for this answer.

2,187.

The compound above is an

A.

ether

B.

ester

C.

alkanal

D.

alkanol

Correct answer is B

No explanation has been provided for this answer.

2,188.

Use the option above to answer this question. The graph that describes a zero order reaction is

A.

A

B.

B

C.

C

D.

D

Correct answer is B

No explanation has been provided for this answer.

2,189.

The diagram above is the solubility curve of a solute, X. Find the amount of X deposited when 500cm3 of a solution of X is cooled from 60oC to 20oC.

A.

0.750 mole

B.

0.950 mole

C.

2.375 moles

D.

4.750 moles

Correct answer is A

No explanation has been provided for this answer.

2,190.

Which of the compounds above would react to take up two molecules of bromine durng bromination?

A.

l only

B.

lll only

C.

l and ll only

D.

ll and lll only

Correct answer is C

No explanation has been provided for this answer.