MHT CET 2025 Chemistry question

Identify conjugate acid-base pair from following equilibrium reaction.

(A) and Correct
(B) and
(C) and
(D) and

Answer: (A)

Solution

A conjugate acid-base pair differs by exactly one proton (). In the forward reaction accepts a proton from to give , so is the base and is its conjugate acid: the pair is .

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Question ID VK-102055