JAMB Chemistry Past Questions & Answers - Page 129

641.

The compound above is the product of the oxidation of

A.

2-methlbutan-2-ol

B.

2-methylbutan -1- ol

C.

2, 3-dimethylprop 1-ol

D.

Pentan -2- ol

Correct answer is B

No explanation has been provided for this answer.

642.

The compound above contains

A.

Sp 3 hybridized carbon atoms only

B.

Sp 2 hybridized carbon atoms only

C.

Sp 3 and Sp hybirdized carbon atoms

D.

Sp 3 and Sp 2

Correct answer is D

No explanation has been provided for this answer.

644.

How many more isomers of the compound above can be obtained ?

A.

5

B.

4

C.

3

D.

2

Correct answer is B

No explanation has been provided for this answer.

645.

The IUPAC nomenclature of the organic compound with the above structural formula is

A.

3-ethyl-2,5-dimethylhexane

B.

4-ethyl-2,5-dimethylhexane

C.

3-ethyl-2,5,5 - trimethylpentane

D.

3-ethyl, 1,1,4-trimethylpentane

Correct answer is A

The name of the compound is 3 - ethyl - 2,5 - dimethylhexane.