How will you prepare N/20 standard solution in oxial acid
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Add one test tube (~ 20 ml) full of dilute sulphuric acid (~ 4 N) to the solution in , titration flask. Note the initial reading of the burette. Heat the flask to 60-70°C and add KMnO4 solution from the burette till a permanent light pink colour is just imparted to the solution in the titration flask.
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