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Question
The correct order for the acidic character of the following carboxylic acid is ?
The correct order for the acidic character of the following carboxylic acid is ?
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Solution
The correct option is D V > II > IV > I > III
V is most stable because its anioin is stabilized to a greater extent through H - bonding with H atom of OH present on both ortho positions; followed by II in which one OH group is present, Compound IV comes next to II because here -OCH3HOC6H6H4COOH(III) due to ortho effect. Compound III is less acidic than benzoic acid because of electron releasing group in the para position. Thus
V > II > IV > I > III
V is most stable because its anioin is stabilized to a greater extent through H - bonding with H atom of OH present on both ortho positions; followed by II in which one OH group is present, Compound IV comes next to II because here -OCH3HOC6H6H4COOH(III) due to ortho effect. Compound III is less acidic than benzoic acid because of electron releasing group in the para position. Thus
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