Ncert Exercises & Solutions

In the titration of KMnO₄ or its use as an oxidizing agent, the medium is acidified with dilute H₂SO₄ rather than HCl because:

1.	Both HCl and KMnO₄ act as oxidising agents
2.	KMnO₄ oxidises HCl into Cl₂, which is also an oxidising agent
3.	KMnO₄ is a weaker oxidising agent than HCl
4.	KMnO₄ acts as a reducing agent in the presence of HCl