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Find out the most stable species from the following. Justify CH.,CH3-CH.-CH3, - Chemistry

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Question

Find out the most stable species from the following. Justify 

`dot"CH","CH"_3-dot"CH" - "CH"_3,` \[\begin{array}{cc}\ce{CH3 -\dot{C} - CH3}\\
|\phantom{.}\\\phantom{..}\ce{CH3}\end{array}\]

Justify
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Solution

The most stable species from the given species is `("H"_3"C")_3dot"C"` i.e., tert-butyl radical.
This is because it has a greater number of alkyl groups attached to the C-atom having an unpaired electron. More the number of the alkyl groups, the greater will be +I inductive (electron releasing) effect, and there by greater will be the stability of the free radical.

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Theoretical Basis of Organic Reactions
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Chapter 14: Basic Principles of Organic Chemistry - Exercises [Page 230]

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Balbharati Chemistry [English] Standard 11 Maharashtra State Board
Chapter 14 Basic Principles of Organic Chemistry
Exercises | Q 1. G. a. | Page 230

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