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Reshav posted an Question
September 16, 2020 • 19:44 pm 30 points
  • IIT JAM
  • Chemistry (CY)

Most acidic phenol derivative is oh a.(a) no2 oh no2 .b) oh ch3 c.(c) oh d. (d cn

Most acidic phenol derivative is OH a.(A) NO2 OH NO2 .B) OH CH3 c.(C) OH d. (D CN

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    Priyanshu kumar Best Answer

    Para nitrophenol

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    Where you face difficulty in this??

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    -I effect No2 ka jyada hai CN se

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    methyl group +I hi dikhata hai

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    or ortho nitrophenol me H bonding hai

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    So para nitro phenol most acidic hai yha pe

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    order ho jayega 1>2>4>3

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    mereko ortho nitrophenol me doubt tha ki usme -I jyada lgega to jyada acidic hoga

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    nhi yha h bonding hoga to kam hoga but 4 cyano se jyada hoga

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    jyada diff nhi aata hai para nitrophenol se

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    mtlb h bonding se sirf uske jesa jo present hoga usse km hogi acidic strength aur bakiyo se jyada rhegi

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    yha pe distance factor bhi aa ja rha hai reshav...cyano grp 4 pe hai or no2 grp 2 pe

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    so no2 ortho me rhte hue bhi cyano se jyada hai .

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    yes clear mereko h bonding ka idea nhi ho ra tha

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    thanku so much

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    welcome reshav😊👍

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