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Q. Chemistry Question Image

Haloalkanes and Haloarenes

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.