Chemistry - GOC Question with Solution | TestHub
ChemistryGOCAcid BaseMedium2 minQB
ChemistryMediumsingle choice
Amongst the following carboxylic acids, the strongest acid is (for first dissociation of dicarboxylic acid)
Options:
Answer:
B
Solution:
Option (b) is maleic acid (cis-butenedioic acid).
In maleic acid, the –COO⁻ (after losing H⁺) is stabilized by intramolecular H-bonding.
This stabilization makes loss of first H⁺ easier, so acidity increases.
Order of acidity (first dissociation):
maleic acid > fumaric acid > CH₃COOH > CH₃CH₂COOH
Stream:JEESubject:ChemistryTopic:GOCSubtopic:Acid Base
⏱ 2mℹ️ Source: QB
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