Fundamentholfundamenthol
JEE Main2019Chemistry
Q.

The increasing order of the reactivity of the following with LiAlH4 is

  1. A

    (A) < (B) < (C) < (D)

  2. B

    (B) < (A) < (D) < (C)

  3. C

    (A) < (B) < (D) < (C)

  4. D

    (B) < (A) < (C) < (D)

Solution

The reactivity order of carboxylic acid derivatives depends on the leaving tendency of the leaving group. Higher the leaving tendency of the leaving group, higher will be the reactivity of the compound.

Therefore, reactivity order towards LiAlH4 is

Acid halide > Acid anhydride > Ester > Amide

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