The relative stabilities of following radicals are:O Il>I> IIO II >I>I|O I> II > IIO l> III > |

The formation of free radicals in the organic reaction takes place when the bond is cleavage homolytically. Free radicals are species with a single electron and thus, they are electron deficient in nature.A free radical may be primary, secondary, or tertiary depending upon the number of H-atoms attached to it. Further, the free radicals may be categorized as alkyl, allyl, or benzyl radicals. Primary free radicals: When radical is attached to two H-atoms. Secondary free radicals: When radical is attached to one H-atoms. The free radical shown in structure ii is a secondary free radical. Tertiary free radicals: When radical is not attached to any H-atoms. The free radical shown in structure i is tertiary free radical. Allylic free radicals: When radical is attached to two H-atoms and is in conjugation (resonance) with a double bond. The free radical shown in structure iii is an allylic free radical. Thus, the correct order of stability is: I > II > III. Hence, the first option is correct.

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The relative stabilities of following radicals are: ii ii O I> II > II O II>I> I| O II > I > || O I> II >|| OI> III > I

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter6: An Introduction To Spectrometric Methods

Section: Chapter Questions

Problem 6.19QAP

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