Q.
Statement 1: pka1 of fumaric acid is more than maleic acid.Statement 2: Conjugate base of fumaric acid is stabilized by intramolecular H-bonding.
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a
Both statements 1 and 2 are correct
b
Statement 1 is correct and statement 2 is incorrect
c
Statement 1 is incorrect and statement 2 is correct
d
Both statements 1 and 2 are incorrect
answer is B.
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Detailed Solution
Conjugate base of maleic acid is stabilized by intramolecular H-bonding. No intramolecular H-bonding in conjugate base of fumaric acid. Hence Maleic acid is more stable and more acidic than fumaric acid.
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