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Sourav posted an Question
July 21, 2020 • 05:30 am 30 points
  • IIT JAM
  • Chemistry (CY)

Which of the following is aromatic. (a) (b) (d) (singiet carbene) (singlet carbene) 23/ correate

Which of the following is aromatic. (a) (b) (d) (Singiet carbene) (Singlet carbene) 23/ Correate

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  • Suman Kumar best-answer

    Option B is correct

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    B is aromatic Sourav

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    lone pair of singlet carbon reside in sp2 hybrid orbital. So it will not be involved in resonance. Remember resonance needs P orbital..

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    Triplet carbene can be involved in resonance as both eletron reside in two P orbital. But only one of the two eletron can be involved in resonance

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    Priyanshu kumar Best Answer

    here special conjugation occurs in case of carbene..lone pair is not in conjugation rather double bond-empty p orbital and double bond conjugation occurs

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    got sourav...

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    have you check it sourav

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    if the carbene lone pair are not in conjugation, how the structure is in resonance?

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    special type of conjugation here occur double bond -enpty p orbital -double bond conjugation...

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    is it between double bond - empty p orbital of carbene and the other double bond?

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    yes sourav

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    see this here empty p orbital

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