Shristy posted an Question
December 11, 2020 • 23:00 pm 1 points
  • IIT JAM
  • Chemistry (CY)

Dafe. whithu it wiube o moutie, qnti or oo0momah{t

Dafe. whithu it wiube o moutie, Qnti Or OO0MOmah{t ...................

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    Priyanshu kumar Best Answer

    III is antiaromatic 12 pi electrons... The middle one double bond is non huckel double bond. II is aromatic...14 pi electrons...examples of peripheral aromaticity I is also aromatic

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    sir then this will be ?

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    10 pi electronic system 4n+2...

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    ye non planar ho jayenge

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    so non aromatic ?

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    yes

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    then ques (i) ky hoga ?

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    see this

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    sir toh ques (i) aromatic hoga ?

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    yes

  • comment-profile-img>
    Dinesh khalmaniya 1 best-answer

    1 and II are aromatic while III is Antiaromatic

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    sir then this will be ?

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    simply use huckel rule for monocyclic

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    sir ye non aromatic h because of repulsion between hydrogen

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    yes, sorry yes

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    10 annulene is non aromatic

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    then ques (I) ky hoga ?

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    aromatic

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    there is no repulsion in between internel Hs in 14 annulene

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    check this

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    you need to remember exceptions

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