Which is the strongest acid ( $p K_{a}$ value is given)?

H C O O H [3.77]

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C_{6} H_{5} C O O H [4.22]

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C H_{3} C O O H [4.7]

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C H_{3} C H_{2} C O O H [4.88]

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Solution

The correct option is D $H C O O H [3.77]$
As pKa value $↓ e s$ acidic nature $↑ e s$ .

So, here most acidic one is HCOOH with pKa 3.77

Hence, the correct option is $A$

Suggest Corrections

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