Which of the following C-H bond has the least | vedclass

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Question

(C) Bond dissociation energy $(BDE)$ is inversely proportional to the stability of the free radical formed after the homolytic cleavage of the $C-H$ b

Vedclass · Accepted Answer

$CH_2=CH-CH_2-CH=CH_2$

Vedclass · Answer

(C) Bond dissociation energy $(BDE)$ is inversely proportional to the stability of the free radical formed after the homolytic cleavage of the $C-H$ bond.In option $(c)$,the radical formed is $CH_2=CH-\dot{C}H-CH=CH_2$,which is a bis-allylic radical.This radical is highly stabilized by resonance with two adjacent double bonds,making it the most stable radical among the given options.Therefore,the $C-H$ bond in $CH_2=CH-CH_2-CH=CH_2$ requires the least energy to break.

Which of the following $C-H$ bond has the least bond dissociation energy?

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