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: $H_2C=CH-\dot{C}H_2 > H_2C=\dot{C}H$.

Similar Questions

The correct order of the relative stability of the following carbanions is:
$I$. $HC \equiv C^{-}$
$II$. $CH_2=CH-CH_2^{-}$
$III$. $H_2C=CH^{-}$
$IV$. $(C_6H_5)_2CH^{-}$

Consider the following carbocations. What is the relative stability order of these carbocations?
$(1)$ $CH_3O-C_6H_4-CH_2^+$
$(2)$ $C_6H_5-CH_2^+$
$(3)$ $CH_3-C_6H_4-CH_2^+$

Which is the most stable cation?

Which one among the following carbocations is the most stable?

Which among the following carbocations has the maximum stability?

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