MHT CET 2023 Chemistry question

Which from following molecules exhibits highest acidic nature?

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

Answer: (D)

Solution

Going down group 16 the size of the central atom increases, so the E–H bond length increases and the bond dissociation enthalpy decreases ( 463, 347, 276, 238 kJ

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Question ID VK-094723