pK_(a)value of 4-nitrobenzoic acid is lower than that of benzoic acid. – InterviewSolution

1.	pK_(a)value of 4-nitrobenzoic acid is lower than that of benzoic acid. Why ?
Answer» Solution :`pK_(a)`VALUE of 4-nitrobenzoic acid is lower than benzoic acid is DUE to `e^(–)`withdrawing nature of —`NO_(2)`attach at PARA position of BENZENE due to which tendency to loose ` H^(+)`ion increases and acidic character increases.

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