In basic medium, H2O2 exhibits which of the following reactions?
(A) Mn2+ $\to$ Mn4+
(B) I2 $\to$ I$-$
(C) PbS $\to$ PbSO4
Choose the most appropriate answer from the options given below :
Solution
In basic medium, oxidising action of H<sub>2</sub>O<sub>2</sub>.<br><br>
Mn<sup>2+</sup> + H<sub>2</sub>O<sub>2</sub> $\to$ Mn<sup>+4</sup> + 2OH<sup>–</sup><br><br>
In basic medium, reducing action of H<sub>2</sub>O<sub>2</sub>.<br><br>
I<sub>2</sub> + H<sub>2</sub>O<sub>2</sub> + 2OH<sup>–</sup> $\to$ 2I<sup>–</sup> + 2H<sub>2</sub>O + O<sub>2</sub><br><br>
In acidic medium, oxidising action of H<sub>2</sub>O<sub>2</sub>.<br><br>
PbS(s) + 4H<sub>2</sub>O<sub>2</sub>(aq) $\to$ PbSO<sub>4</sub>(s) + 4H<sub>2</sub>O(l)
About this question
Subject: Chemistry · Chapter: p-Block Elements · Topic: Group 13: Boron Family
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