Sandhya B posted an Question
January 17, 2021 • 18:05 pm 30 points
  • IIT JAM
  • Chemistry (CY)

Q.7 arrange the following in decreasing order of their pk cooh cooh cooh cooh o o pme asme nme (ii) (iv) ) (i)

Q.7 Arrange the following in decreasing order of their pka value pls tell me the ans for this question with explaination

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  • Suman Kumar best-answer

    This is for preparation in case someone needs Iit jam 2005-2018 full solution https://iitjamchemistrysolvedpapers.blogspot.com/

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    please comment if you don't find any

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    thank you sir I will go through it

  • Sandhya b

    But Pka is inversely proportional to acidity then how can this ans be correct pls explain

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    here pkb order is asking

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    Priyanshu kumar Best Answer

    3>2>1>4 -I effect of NMe3+ > PMe3+ > AsMe3+ Also inductive effect decreases with increases in distance. Acidic order should be 3>2>1>4 as distance prefers first according to DNP concept.. so pka order should be 4>1>2>3 and pkb order should be 3>2>1>4

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    please ask if any doubt

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