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JEE Main2026Jan 23, Shift 1Chemistry
Q.

Consider the following compounds :

Arrange these compounds in the increasing order of reactivity with nitrating mixture.

  1. A

    c a b

  2. B

    b c a

  3. C

    c b a

  4. D

    b a c

Solution

Reactivity toward electrophilic aromatic substitution depends on how the substituent perturbs the ring's electron density.

(c) Anisole, —OCH: strong donor → most activated, fastest nitration.

(a) Chlorobenzene, —Cl: weak overall deactivator ( dominates, but lone pair gives some ) → moderately reactive.

(b) Nitrobenzene, —NO: strong withdrawer → most deactivated.

Increasing reactivity: b a c.

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