Which of the following is correct order for acidity of the given carboxylic acids?
$(A) P h C O O H$
$(B) o - N O_{2} C_{6} H_{4} C O O H$
$(C) p - N O_{2} C_{6} H_{4} C O O H$
$(D) m - N O_{2} C_{6} H_{4} C O O H$

Question

Which of the following is correct order for acidity of the given carboxylic acids? A P h C O O H B o - N O 2 C 6 H 4 C O O H C p - N O 2 C 6 H 4 C O O H D m - N O 2 C 6 H 4 C O O H

TestHub · Accepted Answer

Increasing order of acidic nature. Electron withdrawing group, increases the acidity of benzoic acid, O-isomer will have higher acidity then corresponding m and p-isomer due to ortho effect.

Chemistry - Nomenclature Question with Solution | TestHub

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