Why do we use H2SO4 with oxidising agent K2Cr2O7 during a Chemical Reaction.
In sulphuric acid, H2SO4, the oxidation state of sulphur is +6 which is highest possible oxidation state of S in its compounds. So, it can not be further oxidised. So, in redox titrations, in which a strong oxidising agent like KMnO4 is employed, H2SO4 can be used to provide acidic medium.
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