Which of the following has maximum $p K_{a}$ :-

C H_{2} F C O O H

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C H_{3} C l C O O H

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C H_{3} C O O H

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H C O O H

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Solution

The correct option is A $C H_{2} F C O O H$
The correct answer is $(A)$ .
Because,
$C H_{2} F C O O H$ is the strongest acid in the following:
Hence,
Fluorine is an electron withdrawing group the acidic strength increases.

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Which of the following has maximum pKa :-

The correct option is A CH2FCOOHThe correct answer is (A).Because,CH2FCOOH is the strongest acid in the following:Hence,Fluorine is an electron withdrawing group the acidic strength increases.

Which of the following has maximum $p K_{a}$ :-

The correct option is A $C H_{2} F C O O H$
The correct answer is $(A)$ .
Because,
$C H_{2} F C O O H$ is the strongest acid in the following:
Hence,
Fluorine is an electron withdrawing group the acidic strength increases.