1. Tardigrade
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  3. Chemistry
  4. Compare stability of the following free radicals.

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Q. Compare stability of the following free radicals.Chemistry Question Image

AIIMSAIIMS 2019Organic Chemistry – Some Basic Principles and Techniques

Solution:

Allyl and benzyl radicals are stabilized by resonance, tertiary and secondary radicals are possibly stabilized by hyperconjugation but tertiary is more stable than secondary. Thus the correct order of stability of given free radicals is- $II > I > IV > III$