Select the incorrect statement.

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(D) The stability order of free radicals is determined by resonance and hyperconjugation. The allyl free radical $(H_2C=CH-\dot{C}H_2)$ is resonance s

Vedclass · Accepted Answer

Vinyl free radical is more stable than allyl free radical.

Vedclass · Answer

(D) The stability order of free radicals is determined by resonance and hyperconjugation. The allyl free radical $(H_2C=CH-\dot{C}H_2)$ is resonance stabilized,whereas the vinyl free radical $(H_2C=\dot{C}H)$ is highly unstable due to the radical being on an $sp^2$ hybridized carbon. Therefore,the statement that the vinyl free radical is more stable than the allyl free radical is incorrect. The correct order is: $H_2C=CH-\dot{C}H_2 > H_2C=\dot{C}H$.

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