Adarsh Mishra posted an Question
July 23, 2020 • 16:05 pm 30 points
  • IIT JAM
  • Chemistry (CY)

Uraien0 tnd mango dha álshilah eda h

Sir it is stablised from both Resonance and Hyperconjugation effect.. But sir how I decide stability by Hyperconjugation method..

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  • Suman Kumar best-answer

    You must be facing difficult deciding 2 & 4. See the resonance structure I have drawn Now decide

    cropped8271767868445268800.jpg
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    For 2nd structure all resonating structure are more stable. As both are 3⁰ carbocation

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    Dinesh khalmaniya 1 best-answer

    check it

    cropped3591010996760814504.jpg
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    here if we will check the structure which have more resonanc. if structure have same resonance the we will check hyperconjugation

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    Sir plz explain 1and 3 ..

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    in structure i there is no conjunction between double bond and + check because there is no separation by single bond so only - effect of double bond works

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    Dinesh khalmaniya 1

    we will prefer resonance over hyperconjugation

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