Which of these compounds is not aromatic in character?a)b)c)d)All of theseCorrect answer is option 'A'. Can you explain this answer?

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Only B is correct answer due its a Quasi aromatic compond if break out the Pi bond generate polarity positve charge at cyclopropene ring and negative charge at cyclo pentadiene ring so both are aromatic in character an shows a very high dipole moment and less bond barrier energy

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I think that the 1 is not the correct answer bcz the carbon atom present in ring are not SP2 hybridised and that not obey the aromaticity rule

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B & c Is correct. because in 'a' there is no fully conjugation

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Option a is correct . bcz its are homocyclic . In homocyclic only carbon atom are involved in ring formation.

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Que correction - which of the following is  not  aromatic _

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According to 4n+2pi electrn rule  ,the no of pi electron in 2nd and 3rd cases are 8 which is not satisfied by 4n+2pi electron rule but in 1st compound the no of pi electron is 6 where n=1satisfies the rule

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I think B and C both correct bcz in case of C if you break double bond ic + and - therefoe + charge attached with heptene rind and negative charge atoched with carbon

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Please explain me this question

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I think B is correct option

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For arromaticity 4n+2pi is formula use and acc to this 3rd is right

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