In which pairs first compound in stronger acid than the second?

Question

In which pairs first compound in stronger acid than the second? (A) Adipic acid, succinic acid (B) Fumaric acid, maleic acid (C) Phthalic acid, terepthalic acid (D) Picric acid, o-toluic acid

Tardigrade Admin · Accepted Answer

Phthalic acid is stronger acid due to intramolecular hydrogen bonding

Q. In which pairs first compound in stronger acid than the second?

Adipic acid, succinic acid

Fumaric acid, maleic acid

Phthalic acid, terepthalic acid

Picric acid, o-toluic acid

Phthalic acid is stronger acid due to intramolecular hydrogen bonding