A) p-nitrobenzoic acid
B) p-methylbenzoic acid
C) p-chlprobenzoic acid
D) p-methoxybenzoic acid
Correct Answer: D
Solution :
Higher the tendency of an acid to release a proton, higher is the acidic strength. Presence of electron releasing group such as\[-OC{{H}_{3}},C{{H}_{3}}\]etc (\[-OC{{H}_{3}}\] is more electron releasing than \[C{{H}_{3}}\]group) increases the electron density of the carboxylate anion. Consequently, the anion becomes unstable and the release of proton becomes difficult. Thus, weaker is the acid. Hence, \[p-\]methoxy benzoic acid is the least acidic among the given acids.You need to login to perform this action.
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