Question

Correct order of decreasing reactivity of nucleophillic addition in case of HCHO, CH3CHO and CH3COCH3 is
1 point
(a) CH3 COH3 > CH3CHO > HCHO
(b) HCHO > CH3CHO > CH3COCH3
(c) CH3COCH3 > HCHO > CH3CHO
(d) CH3CHO > HCHO > CH3COCH3​

Answer 1

b option is correcti think you like it

Answer 2

The correct order of decreasing reactivity of nucleophilic addition is as follows-

$HCHO>CH_3CHO>CH_3COCH_3$.

• Nucleophiles are species that are negatively charged and love the nucleus. Hence nucleophiles easily attack electron-deficient carbonyl compounds.
• HCHO has no attached electron-donating group so, it has a high affinity for nucleophilic addition.
• Again $CH_3CHO$ has one and $CH_3COCH_3$ has two electron donating groups attached to the CO group so, their reactivity decreases.