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Sir,In volumetric analysis, for titration of KMnO4 v/s oxalic acid, why do we add 1 test tube full of file.H2SO4 to 20ml soln. And heat it till vapours come before titration?

Sir,In volumetric analysis, for titration of KMnO4 v/s oxalic acid, why do we add 1 test tube full of file.H2SO4 to 20ml soln. And heat it till vapours come before titration?

Grade:12

1 Answers

Vikas TU
14149 Points
7 years ago
Beacuse during the titration with oxalic acid the evoltuion of CO2 gas is a must as the CO2 gas gets evolved that is also know as effervescence. Evolution of CO2 gas proves finally the feasibility of reaction b/w the Oxlic acid and KMnO4.

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