A 5mL pure liquid toluene dissolved in 100 mL of dil alkaline KMnO4 and refluxed to change to benzoic acid with formation of

Question

A 5mL pure liquid toluene dissolved in 100 mL of dil alkaline KMnO4 and refluxed to change to benzoic acid with formation of dark brown precipitate of MnO2 s The precipitate and filterate separated The precipitate redissolved in 100 mL of 1M acidified solution of Na2C204 and excess oxalate required 50 73 mL of 0 1M acid dichromate for back titration The 10 5 mL filterate selected acidified with dil H2SO4 and titrated with 38 mL of 0 1 M Na2C204 under hot conditions at end point Report the molarity of original KMnO4 s integer answer

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