Of the five isomeric hexanes, the isomer which can give two monochlorinated compounds is
2-methylpentane
2,2-dimethylbutane
2,3-dimethylbutane
n-hexane.

Options

A. (a) 2,3-Dimethylbutane
B. (b) 2,2-Dimethyl butane
C. (c) 2-Dimrthyl pentane
D. (d) n-Hexane

Answer

A

Explanation

The isomeric hexane should have two different types of H atoms and four similar types of H atoms to give two monochlorinated products.

In 2,3-dimethyl butane, H atoms at positions 'a' and 'b' are the same and 'b' are the same. So, two positions are available for chlorination.