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Karnataka Board PUCPUC Science Class 11

Which of the following carbocation is most stable? - Chemistry

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Question

Which of the following carbocation is most stable?

Options

  • \[\ce{(CH3)3C*^+CH2}\]

  • \[\ce{(CH3)3^+C}\]

  • \[\ce{CH3CH2^+CH2}\]

  • \[\ce{CH3^+CH CH2C}\]

MCQ

Solution

\[\ce{(CH3)3^+C}\]

Explanation:

\[\ce{(CH3)3^+C}\] is a tertiary carbocation. A tertiary carbocation is the most stable carbocation due to the electron releasing effect of three methyl groups. An increased + I effect by three methyl groups stabilizes the positive charge on the carbocation.

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Fundamental Concepts in Organic Reaction Mechanism - Fission of a Covalent Bond
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Chapter 12: Organic Chemistry - Some Basic Principles and Techniques - EXERCISES [Page 372]

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NCERT Chemistry - Part 1 and 2 [English] Class 11
Chapter 12 Organic Chemistry - Some Basic Principles and Techniques
EXERCISES | Q 12.38 | Page 372

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