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Chemistry · General Organic Chemistry

JEE Main 2026 — 5 April, Morning Shift — Question 61

Given below are two statements :

Statement I: On the basis of inductive effect, the order of stability of alkyl carbanions is CH3−>CH3−CH2−>(CH3)2CH−>(CH3)3C−\mathrm{CH}_{3}^{-}>\mathrm{CH}_{3} -\mathrm{CH}_{2}^{-}>\left(\mathrm{CH}_{3}\right)_{2} \mathrm{CH}^{-}>\left(\mathrm{CH}_{3}\right)_{3} \mathrm{C}^{-}.

Statement II : Allyl and benzyl carbanions are more stabilised by inductive effect and not by resonance effect.

In the light of the above statements choose the correct answer from the options given below:

  1. Option A:

    Both Statement I and Statement II are correct

  2. Option B:

    Both Statement I and Statement II are incorrect

  3. Option C:

    Statement I is correct and Statement II is incorrect

    Correct
  4. Option D:

    Statement I is incorrect and Statement II is correct

Answer: C

Step-by-step solution

Statement-I C⊖H3>CH3−C⊖H2>(CH3)2C⊖H>(CH3)3C⊖\stackrel{\ominus}{\mathrm{C}} \mathrm{H}_{3}>\mathrm{CH}_{3}-\stackrel{\ominus}{\mathrm{C}} \mathrm{H}_{2}>\left(\mathrm{CH}_{3}\right)_{2} \stackrel{\ominus}{\mathrm{C}} \mathrm{H}>\left(\mathrm{CH}_{3}\right)_{3} \stackrel{\ominus}{\mathrm{C}} It is correct order of anion stability and it is based on inductive effect.

Statement-II: Benzyl carbanion Both are stabilised by resonance Statement-I : Correct Statement-II : Incorrect

Solution figure

Answer key and solution verified before publishing.

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Exam
JEE Main 2026
Paper
5 April, Morning Shift
Subject
Chemistry
Chapter
General Organic Chemistry
Topic
Types of Electronic Effects
Given below are two statements : Statement I: On the basis of… | JEE Main 2026 PYQ with Solution · DhiX AI