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Which of the following has the greates pKa value?? ClCH 2 COOH Cl 2 CHCOOH Cl 3 CCOOH CH 3 COOH ALTSM 15/03 Q26

Which of the following has the greates pKa value??
 
  1. ClCH2COOH
  2. Cl2CHCOOH
  3. Cl3CCOOH
  4. CH3COOH
ALTSM 15/03 Q26

Grade:12th pass

1 Answers

naina
43 Points
6 years ago
ch3cooh has greatest pka value since its d weakest acid among d given acids.the rest all acids are alpha halo carboxylic acids whose conjugate base(after donating h+)is stabilised due to – i (inductive ) effect of d chlorine atoms.

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