JEE Main 2026 · 4 Apr · Shift 1 · Chemistry Q63 · Dronacharya Exams

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ChemistrySingle correct+4 / -1Question 63 of 75

Increasing order of electron withdrawing power of following functional groups is:

a. −CN

b. −COOH

c. $\ce{-NO2}$

d. −I

A

c < b < d < a

B

c < a < b < d

C

d < b < a < c

D

a < b < c < d

Answer and worked solution

Official answer: C

Order. −I withdraws by induction only (and is weakest). Then −COOH < −CN < −NO₂ (strongest).

d < b < a < c.

(C)

Topics:Electronic effects (inductive, resonance, hyperconjugation)

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