Q 2665556465.     An equal volume of a reducing agent is titrated separately with 1 M `KMnO_4` in acid, neutral and alkaline medium. The volumes ofKMn04 required are 20 mL in acid, 33.3 mL in neutral and 100 mL in alkaline media. Find out the oxidation state of manganese in each reduction product. Give the balanced equations for all the three half reaction. Find out the volume of 1M `K_2Cr2O_ 7` consumed, if the same volume of the reducing agent is titrated in acid medium.

JEE 1989

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