Which of the following compounds is most acidic in nature?
A
4-chlorobutanoic acid
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B
3-chlorobutanoic acid
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C
2-chlorobutanoic acid
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D
Butanoic acid
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Solution
The correct option is D 2-chlorobutanoic acid 2-chlorobutanoic acid is most acidic in nature. Because electron withdrawing group (−Cl) is present adjacent to the carboxylic acid group (−COOH).