Question

Why is H2SO4 used in redox reactions which include KMnO4

Answer 1

because it is a oxidizing agent

Answer 2

HNO3 is also a powerful oxidizing agent along with KMnO4 so it also plays its role in oxidation which causes a decline in the value of KMNo4 used. As dilute sulfuric acid is ideal for redox titration because it is neither an oxidizing agent and nor a reducing agent

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