The correct order of increasing acidity of the followins is :
The correct order of increasing acidity of the followins is :
A. `HCNgtClCH_(2)COOHgtHCOOHgtCH_(3)COOH`
B. `HCNgtHCOOHgtClCH_(2)COOHgtCH_(3)COOH`
C. `ClCH_(2)COOHgtHCOOHgtCH_(3)COOHgtHCN`
D. `ClCH_(2)COOHgtHCNgtHCOOHgtCH_(3)COOH`
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Correct Answer - C
(c) is the correct order. HCN is the weakest acid because `CN^(-)` ion left after releasing `H^(+)` ion is not resonance stabilised.
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