Question

Aldehydes are more reactive than ketones in nucleophilic addition reactions because:



(1) The carbonyl group is planar in ketones and not in aldehydes

(2) The carbonyl group in aldehydes is not reactive towards electrophiles

(3) Aldehydes are less sterically hindered than ketones

(4) The carbonyl group in aldehydes is a chiral centre

Answer 1

Answer: (3) Aldehydes are less sterically hindered than ketones