In which of the following reactions, H_2O_2 is acting as a reducing agent? [AMU 2009]

JEE Main Chemistry question

In which of the following reactions, HO is acting as a reducing agent? [AMU 2009]

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

Answer: (D)

Solution

In (A), (B) and (C), HO oxidises SO to HSO, I to I, and S (in PbS) to sulphate respectively, while the peroxide oxygen is itself reduced from to — so in each of these HO is the oxidising agent. In (D),

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Question ID VK-137205