Sahiba Naqvi posted an Question
January 09, 2021 • 11:27 am 30 points
  • IIT JAM
  • Chemistry (CY)

What is order of acidic strength and why?

1 Answer(s) Answer Now
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  • Amol ashok pawar

    Nitro at Para then ortho then meta and last of phenol https://m.youtube.com/watch?v=vTHSuplRi7Q This video will help

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    Priyanshu kumar

    Where you have doubt in this please ask?

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    you have rightly identified all the electronic effect shown by NO2 group at various position.. also -R and -I effect increases the acidity so ortho and para isomers should have highest acidity as both position -R and -I operates and at meta only inductive effect-I of NO2 group operates... phenol has least acidity here... and between ortho and para ortho has less acidity than para as due to intramolecular hydrogen bonding H+ release is not easier...so order should be 4>2>3>1

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    Dinesh khalmaniya 1

    solution

    cropped2616368935951076480.jpg
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    sir in part (D) because of intramolecular H-bonding ortho isomer should have less inductive effect than p-isomer

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    No, here first we will check resonance but due to H bonding resonance diminished so now we will compair acidiy by -I effect. less the distance more is the -I so ortho >para

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    got it now?

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