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.

2,236.

The above reaction is an example of

A.

a displacement reaction

B.

a neutralization reaction

C.

an elimination reaction

D.

saponification

Correct answer is B

No explanation has been provided for this answer.

2,238.

What is the IUPAC name for the hydrocarbon

A.

2-ethyl-4-methylpent-2-ene

B.

3,5-dimethylhex-3-ene

C.

2,4-dimethylhex 3-ene

D.

2-methyl-4-ethylpent-3-ene

Correct answer is A

No explanation has been provided for this answer.

2,239.

Use the graph above to answer this question. The structure of cis-2-butene is

A.

A

B.

B

C.

C

D.

D

Correct answer is B

No explanation has been provided for this answer.

2,240.

Changes in the physical in the scheme above.The letter X,Y and Z respectively represent

A.

sublimation, condensation and freezing

B.

sublimation, vapourization and solidification

C.

freezing, condensation and sublimation

D.

evaporation, liquefaction and solidification

Correct answer is A

No explanation has been provided for this answer.