Consider the following statements. Which of t | vedclass

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(D) Statement $(a)$: The allyl carbocation $(CH_2=CH-CH_2^+)$ is resonance stabilized,whereas the isopropyl carbocation $(CH_3-CH^+-CH_3)$ is stabiliz

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$a, b, c$ and $d$

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(D) Statement $(a)$: The allyl carbocation $(CH_2=CH-CH_2^+)$ is resonance stabilized,whereas the isopropyl carbocation $(CH_3-CH^+-CH_3)$ is stabilized only by hyperconjugation and inductive effects. Resonance stabilization is generally more effective,making the allyl carbocation more stable.Statement $(b)$: Naphthalene has two distinct types of $C-C$ bonds due to its fused ring structure,leading to different bond lengths.Statement $(c)$: The structures represent a valid resonance transition involving the movement of $\pi$ electrons and the lone pair on nitrogen,maintaining the octet rule and charge conservation.Statement $(d)$: The phenyl anion (with the negative charge on an $sp^2$ hybridized carbon in the ring) is less stable than the cyclohexadienyl anion where the negative charge can be delocalized over the conjugated system.All statements $(a), (b), (c),$ and $(d)$ are correct.

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