Shweta Thakur posted an Question
November 24, 2020 • 22:34 pm 30 points
  • IIT JAM
  • Chemistry (CY)

Plz solve..this h (ch,)nh (ch,),n 3 nh 2 1 ch nh (c.h)nh (ch,),n 3 2

uTemistry (5asic Concepts in TITemiStry (Basic Concep sin Organ CH,NH (CH,)NH (CH,),N 3 NH 2 1 CH NH (C.H)NH (CH,),N 3 2

2 Answer(s) Answer Now
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    Dinesh khalmaniya 1 best-answer

    Based on pka values order will be check this link form more details https://www.askiitians.com/iit-jee-amines-and-nitrogen-containing-compounds/basicity-of-amines.html

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    sir isme order Ka koi reason ho skta

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    amines k case me hm koi particular reason nhi bta skte, because basicity three factors pr depends krti he so hme yad rkhni pdegi

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    ye kya

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    itna confusion Hoga ye to

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    ha order yaad rkhna hi pdega

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    particular koi Reason nhi he because order pka values k uper based he

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    ok

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    ye pka values kaise pta krte hain

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    koi procedure hai kya

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    pka value practical se pta lgti he

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    konse practical

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    mean experiment krke pta krte he

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    pka value k liye litmus test krte he

  • comment-profile-img>
    Priyanshu kumar Best Answer

    Combining the basicity of methyl and ethyl amines the basicity order is suggested for this and based on pkb values

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    2°' > 2° > 1°' > 1°

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    based on pkb values the further order is suggested....

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    iska order kaise Hoga sir

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    sir

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    see shweta pkb values in above attached image...these have nearly same pkb values 3.27 &3.35

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    here mostly pkb values determine basicity...

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    sir exam main pkb values thodi denge

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    nhi ye order tmhe bs nitrogen case me dekhne honge...means amine types aaye to

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    kyunki first to methyl ke alag honge...fr ethyl ke alag....

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    combined effect aaye to pkb values se determine honge...or second degree ke basicity first degree se jyade honge

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    you can give this reason too- Since (CH3)2NH contains a second CH3 , it experiences a greater electron-donating effect from the methyl substituents and thus is more Lewis basic. Therefore, dimethylamine is more Lewis basic than ethylamine.

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