Which one is most reactive towards Nucleophilic addition reaction?

Question

Which one is most reactive towards Nucleophilic addition reaction?, , , ,

MARKS App · Accepted Answer

Reactivity of carbonyl compounds towards NAR depends on steric and electronic effects.
Reactivity

\propto

E.W.G. (Electron withdrawing group)

\propto \frac{1}{s t e r i c hindrance}

NAR reactivity

increase (+)ve charge on

s p^{2} c

of

- \underset{O}{\underset{| |}{C}} -