Arrange the following carbanions in the decreasing order of stability p – Br – C6H4 – CH2 I. C6H5 – CH2 II. p – CH3O – C6H4 – CH2 III. p – CHO – C6H4 – CH2 IV. p – CH3 – C6H4 – CH2 V. Choose the corre

Question

Arrange the following carbanions in the decreasing order of stability p – Br – C6H4 – CH2 I. C6H5 – CH2 II. p – CH3O – C6H4 – CH2 III. p – CHO – C6H4 – CH2 IV. p – CH3 – C6H4 – CH2 V. Choose the correct answer from the options given below :

(A) I > II > IV > V > III
(B) I > IV > II > V > III
(C) IV > I > II > V > III
(D) IV > II > I > III > V

Prashant Kotian · Accepted Answer

Correct answer: C. Electron withdrawing groups increases stability of carbanion and electron donating groups decreases stability of carbanion.

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