JEE Main 2026 · 5 Apr · Shift 1 · Chemistry Q63

← JEE Main 2026 · 5 Apr · Shift 1

ChemistrySingle correct+4 / -1Question 63 of 75

Given below are two statements:

Statement I: On the basis of inductive effect, the order of stability of alkyl carbanions is $\ce{CH3-}>\ce{CH3-CH2-}>\ce{(CH3)2CH-}>\ce{(CH3)3C-}$ .

Statement II: Allyl and benzyl carbanions are more stabilised by inductive effect and not by resonance effect.

In the light of the above statements, choose the correct answer from the options given below

Both Statement I and Statement II are correct

Both Statement I and Statement II are incorrect

Statement I is correct but Statement II is incorrect

Statement I is incorrect but Statement II is correct

Answer and worked solution

Official answer: C

Statement I. Alkyl groups are +I and destabilise a carbanion, so stability is $\ce{CH3-}>1^\circ>2^\circ>3^\circ$ . Correct.

Statement II. Allyl and benzyl carbanions are stabilised by resonance, which delocalises the negative charge. Incorrect.

(C)

Topics:Reactive intermediates Electronic effects (inductive, resonance, hyperconjugation)

← Previous question Next question →

JEE Main 2026 · 5 Apr · Shift 1, Chemistry question 63