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Grade: 12
        Which is more acidic ,benzoic acid or acetic acid ? What is the reason for it?
11 months ago

Answers : (1)

Arun
15841 Points
							Benzoic acid is the stronger acid compared to ethanoic acid. This is due to the delocalisation of the lone pair of electrons on the oxygen atom into the benzene, increasing the polarity of the -OH bond and thus makes the cleaving of the H+ ion easier. The delocalisation of electrons into the benzene ring also stabilises the carboxylate ion. Therefore the position of equilibrium lies more to the right and this shows that benzoic is a more acidic acid.The simplified version is that a benzene ring is electron withdrawing and a methyl group is electron releasing. The electron withdrawing power makes the releasing of the H+ ion easier\If electron density is more than the basic character is more. so in given formic acid and benzoic acid in benzoic acid electron density is more so benzoic acid is less acidic character so formic acid is more acidic character than the benzoic acid.
						
11 months ago
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