9.) 2071 (Set C) Q.No. 25 What is meant by redox reaction?
Balance the following equation by oxidation number method
indicating oxidant and reductant:
KMnO4 + Na2O2 + H2SO4 -> K2SO4 +
K2SO4 + MnSO4 + Na2SO4
+ H2O + O2
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Explanation:
A redox reaction can be defined as a chemical reaction in which electrons are transferred between two reactants participating in it. ... The gain of electrons and the corresponding decrease in the oxidation state of a reactant is called reduction.
5Na2O2 + 2KMnO4 + 8H2SO4 → 5O2 + 2MnSO4 + 5Na2SO4 + K2SO4 + 8H2O
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