A mixture of NaHC(2)O(4) and KHC(2)O(4) ...

A mixture of `NaHC_(2)O_(4) and KHC_(2)O_(4) .H_(2)C_(2)O_(4)` required equal volumess of `0.2 N KMnO_(4) and 0.12N NaOH ` separtely. What is the molar ration `NaHC_(2)O_(4) and KHC_(2)O_(4) .H_(2)O_(4)` in the mixture?

`6:1`

`1:6`

`1:3`

`3:1`

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