Q.

1077 217 Haloalkanes and Haloarenes Report Error

A

Option 1 Image

B

Option 2 Image

C

Option 3 Image

D

Option 4 Image

Solution:

Sterically hindered base e.g., $t$ -BuOK favours Hofmann elimination i.e., major product is less substituted alkene.

Sterically free base favours Saytzeff elimination i.e., major product is more substituted alkene.

$t$ -Butoxide is a stronger base, yet a weaker nucleophile i.e., stronger base always favours elimination.