Explanation

(d)
The possible isomers of hexane are
[image:10_image73.emf][image:10_image74.emf]
[image:10_image75.emf][image:10_image76.emf]
Out of these structure (iii) and (i) have respectively minimum and maximum number of monochloro derivatives
For structure(iii)
[image:10_image77.emf] [image:10_image78.emf]
[Only 2 monochloro derivatives (minimum) are possible]
For structure (i).
[image:10_image79.emf][image:10_image80.emf]
[image:10_image81.emf] [image:10_image82.emf]
[image:10_image83.emf]
[5 monochloro derivatives (maximum) are possible]