Nucleophilic addition reaction will be most favoured in:

Step-by-step solution

In aldehydes, - C = O has the presence of at least one alkyl group except formaldehyde which has the + I effect and which decreases the positive charge of carbon, thereby making the attack of nucleophiles difficult. The nucleophilic attack becomes more difficult in ketones having a minimum of two alkyl groups. Hence, by attachment of the alkyl groups (due to the + I effect), the rate of nucleophilic addition decreases. Order of nucleophilic addition. Related Theory The carbonyl compounds undergo a nucleophilic addi