JEE Main 2022 · 24 Jun · Shift 1, Chemistry question 89

Electrophilic centres are carbons that a nucleophile attacks.

• The carbonyl carbon of the ketone.
• The $\beta$-carbon of the $\alpha,\beta$-unsaturated ketone ($\mathrm{CH=CH\text{-}CO}$), open to conjugate addition.
• The nitrile carbon of $\mathrm{CH_2CN}$.

Total 3.

Answer: 3