Shweta Thakur posted an Question
August 05, 2020 • 00:39 am 30 points
  • IIT JAM
  • Chemistry (CY)

Plz explain acidic strength of these compounds agdie stpeugth ol tyclo voho, yolnbudons qud ul

oncentretso Sxability o A C (decrease the dharge on 8 en ncrease the dharge on C.8 hencs Sencs 6ecres the see ae AGdie Stpeugth ol Tyclo voho, yolnbudons Qud ulo Dat >HOROH CHc

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    Priyanshu kumar Best Answer

    cyclopropane is most acidic shweta

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    sir plz explain thereason

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    wait explaining

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    u were saying with more s character bond angle increases

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    so here bond angle of cyclopentane is more n

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    ok ok

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    check this

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    yes shweta percentage s character increases bond angle increases but in this cyclic ring we have to check outside the ring means external bond angle between C-H

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    you can use this direct concept here ring size directly proportional to +I effect and inversely to -I effect

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    so ring size less more -I effect and -I effect effect increses acidity so cyclopropane most acidic

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    but sir

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    what shweta..??

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    The ring having smaller internal angles have greater bond angle around external C-H bonds. The smaller the internal angle is as observed in smaller cycloalkanes, the greater S character in C-H bonds hence greater acidic character. So, order of acidic character is cyclopropane > cyclobutane > cyclopentane.... Now got it shweta??

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    please respond shweta😊

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    sir carbanion is here and carbonation stability directly related to -i effect and inversely +i

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    yes Shweta

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    u were saying u were saying itsdirectly related

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    i m telling shweta ring size

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    check above all the comments and copy explanation

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    Any doubt you can ask...😊

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    wait sir

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    i will ask u later

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    okk read then😊

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    can I say -i is more in small size rings because in larger rings there is more +I effect due to more ch2

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    Yes shweta,less ring size more -I effect

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    ok

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    sir thanku so much

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    always welcome😊

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    sir these all are sp3 hybridised

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    yes shweta check na 4 sigma bond

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    ok and carbanion stability with increase in s character is due the electronegativity if carbon increase which hold negative charge in better way

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    right ?

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    yes more EN atom holds negative charge in a better way....

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    ok sir

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