Some pairs of acid are given below. Select the pair in which second acid is stronger than first.

C H_{3} C O_{2} H

and

C H_{2} F C O_{2} H

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C H_{2} F C O_{2} H

and

C H_{2} C I C O_{2} H

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C H_{2} C I C O_{2} H

and

C H_{2} B r C O_{2} H

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C H_{3} C H_{2} C H F C O_{2}

and

C H_{3} C H F C H_{2} C O_{2} H

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Solution

The correct option is A $C H_{3} C O_{2} H$ and $C H_{2} F C O_{2} H$
The presence of $- F$ group having strong $- I$ effect makes $C H_{2} C O_{2} H$ a stronger acid than $C H_{3} F C O_{2} H$ .

Suggest Corrections

Similar questions

Which acid of each pair shown here would you expect to be stronger?

(i) CH₃CO₂H or CH₂FCO₂H

(ii)CH₂FCO₂H or CH₂ClCO₂H

(iii) CH₂FCH₂CH₂CO₂H or CH₃CHFCH₂CO₂H

(iv)

3

2

2

2, 4, 6

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