Consider the following specific nucleophilic reagents used for addition-elimination reactions: Ammon — Aldehydes Ketones and Carboxylic Acids Chemistry Question

💡 Solution & Explanation

All the listed compounds are weak nucleophiles belonging to the class of ammonia and its derivatives ($NH_2-Z$). They completely rely on a weakly acidic medium to protonate the carbonyl oxygen, which enhances the electrophilicity of the carbonyl carbon so these weak nucleophiles can attack. Therefore, all 6 require it.