Which carbonyl group is most reactive for nucleophilic addition reaction ?

Question

Which carbonyl group is most reactive for nucleophilic addition reaction ? <img class="img-fluid question-image" alt="Question" src="https://cdn.tardigrade.in/q/nta/c-zblfslx1rrylphvq.jpg" /> (A) 1 (B) 2 (C) 3 (D) All have same reactivity

Tardigrade Admin · Accepted Answer

<img class="img-fluid question-image" alt="Solution" src="https://cdn.tardigrade.in/q/nta/c-zblfslx1rrylcfxc.jpg" /> with attack on 2nd carbonyl group, the repulsion between same charges largely decreases.

Q. Which carbonyl group is most reactive for nucleophilic addition reaction ?

$1$

$2$

$3$

All have same reactivity

with attack on $2^{n d}$ carbonyl group, the repulsion between same charges largely decreases.