Question

how many isomers are there for heptane​

Answer 1

Explanation:

nine isomers

n-Heptane has nine isomers, all with different names and arrangements, but still containing seven carbon atoms and sixteen hydrogen atoms.

Answer 2

Well heptane has 9 isomers. Isomerisation increases with increasing carbon number.

The nine isomers are:

Heptane

2-Methylhexane

3-Methylhexane

2,2-Dimethylpentane

2,3-Dimethylpentane

2,4-Dimethylpentane

3,3-Dimethylpentane

3-Ethylpentane

2,2,3-Trimethylbutane.