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.

2,506.

The isomers of C3H8O ARE

A.

1 - propanol and 2 - propanol

B.

1 - propanol and 1 - propanol

C.

2 - propanol and 2 - propanone

D.

2 - propanol and 1 - propanol

Correct answer is A

No explanation has been provided for this answer.

2,507.

Alkanals can be distinguished from alkanones by the reaction with

A.

sudan lll stain

B.

starch iodide paper

C.

lithium tetrahydrido aluminate (lll)

D.

fehling's solution

Correct answer is D

No explanation has been provided for this answer.

2,508.

Geometric isomerism can exist in

A.

hex-3-ene

B.

hexane

C.

prop-l-ene

D.

3-methyl but -l-ene

Correct answer is A

No explanation has been provided for this answer.

2,509.

Which of the following metals is the least reactive?

A.

Pb

B.

Sn

C.

Hg

D.

Au

Correct answer is D

No explanation has been provided for this answer.

2,510.

A common characteristic between zinc and the other transition elements is the ability to

A.

have variable oxidation states

B.

from complex ions

C.

act as a catalyst

D.

from coloured ions

Correct answer is B

No explanation has been provided for this answer.