JEE Main · 2020 · Shift-IImediumGOC-095

Correct order of stability for alkoxides:

General Organic Chemistry (GOC) · Class 11 · JEE Main Previous Year Question

Question

Correct order of stability for alkoxides: image

Options
  1. a

    (B) > (C) > (A)

  2. b

    (C) > (A) > (B)

  3. c

    (C) > (B) > (A)

  4. d

    (B) > (A) > (C)

Correct Answerc

(C) > (B) > (A)

Detailed Solution

Step 1: Stability of Alkoxides Stability increases with electron-withdrawing groups and resonance.

  • (C): The negative charge on Oxygen is in extended conjugation with the nitro group through the double bond. (Most stable).
  • (B): The nitro group is adjacent, but there is less conjugation than C.
  • (A): No resonance, only inductive stabilization from \ceNO2-\ce{NO2}. (Least stable).

Step 2: Order (C) > (B) > (A).

Answer: (c)\boxed{\text{Answer: (c)}}

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