Question

kmno4 is primary or secondary standard? and explain​

Answer 1

Answer:

A secondary standard solution of KMnO4 is usually titrated by oxalic acid, a primary standard, and then used to determine the concentration of a number of other analytes. The reaction with oxalic acid can be summarized as 5H2C2O4+2MnO4−+6H+⟶10CO2+2Mn2++8H2O where everything except MnO4− is colorless.

Explanation:

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