Question

2 mole , equimplar mixture of `Na_(2)C_(2)O_(4) and H_(2)C_(2)O_(4) "required" V_(1) L of 0.1 M KMnO_(4)` in acidic medium for complete oxidation. The same amount of the mixture required ` V_(2) L of 0.2 M NaOH` for neutralisaation. The raation of ` V_(1) and V_(2)` is:

Answer 1

Correct Answer - 7
No. of moles of `Na_(2)C_(2)O_(4) = H_(2)C_(2)O_(4) = 1`
`4 = v_(1)xx 0.5, v_(1) = 8L`
`2 = v_(2) xx 0.1 rArr v_(2) = 20L, v_(1): v_(2) = 8:20`
`= 2:5 = x:y, x+y = 7`