Which of the following is the least stable ca | vedclass

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(C) The stability of carbon free radicals is determined by resonance and hyperconjugation. $A$ is an allylic radical,which is stabilized by resonance.

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(C) The stability of carbon free radicals is determined by resonance and hyperconjugation. $A$ is an allylic radical,which is stabilized by resonance. $B$ is also an allylic radical,stabilized by resonance. $C$ is a secondary alkyl radical,which is stabilized by hyperconjugation. $D$ is a tertiary alkyl radical,which is the most stable among the alkyl radicals due to maximum hyperconjugation. Comparing these,the cyclohexyl radical $(C)$ is less stable than the allylic radicals ($A$ and $B$) and the tertiary radical $(D)$. However,between the given options,the cyclohexyl radical $(C)$ is the least stable because it lacks resonance stabilization and has fewer hyperconjugative interactions compared to the tertiary radical $(D)$.

Which of the following is the least stable carbon free radical?

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