JEE Main 2026 · 2 Apr · Shift 2 · Chemistry Q63

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ChemistrySingle correct+4 / -1Question 63 of 75

Given below are two statements :

Statement I : In $\ce{O2N-C6H4-\overset{\oplus}{C}H-C6H4-OCH3}$ (both rings para-substituted), the carbocation is stabilised by +R effect of $\ce{-OCH3}$ group.

Statement II : In $\ce{O2N-C6H4-\overset{\ominus}{C}H-C6H4-OCH3}$ , the carbanion is stabilised by −R effect of $\ce{-NO2}$ group.

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

Statement I species: (4-nitrophenyl)(4-methoxyphenyl)methyl carbocation, O₂N-C₆H₄-CH⁺-C₆H₄-OCH₃ with both groups para.

Statement II species: the corresponding carbanion, O₂N-C₆H₄-CH⁻-C₆H₄-OCH₃.

Both Statement I and Statement II are true

Both Statement I and Statement II are false

Statement I is true but Statement II is false

Statement I is false but Statement II is true

Answer and worked solution

Official answer: A

Statement I. The p-OCH₃ group donates its lone pair into the ring (+R), delocalising the positive charge of the benzylic cation: true.

Statement II. The p-NO₂ group withdraws by resonance (−R), delocalising the negative charge of the benzylic carbanion onto its oxygens: true.

(A)

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

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JEE Main 2026 · 2 Apr · Shift 2, Chemistry question 63