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प्रश्न
Which of the following equations depict the oxidising nature of \[\ce{H2O2}\]?
विकल्प
\[\ce{2MnO^{-}4 + 6H^{+} + 5H2O2 -> 2Mn^{2+} + 8H2O + 5O2}\]
\[\ce{2Fe^{3+} + 2H^{+} + H2O2 -> 2Fe^{2+} + 2H2O + O2}\]
\[\ce{2I^{-} + 2H^{+} + H2O2 -> I2 + 2H2O}\]
\[\ce{KIO4 + H2O2 -> KIO3 + H2O + O2}\]
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उत्तर
\[\ce{2I^{-} + 2H^{+} + H2O2 -> I2 + 2H2O}\]
Explanation:
\[\ce{2\overset{-1}{I^{-}} + 2\overset{+1}{H^{+}} + \overset{+1}{H2}\overset{-1}{O2} -> \overset{0}{I2} + 2\overset{+1}{H2}\overset{-2}{O}}\]
\[\ce{I-}\] ions are oxidized to \[\ce{I2}\] (increase in O.N. from –1 to 0), Hence, \[\ce{H2O2}\] acts as an oxidizing agent.
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