`3.4 g` sample of `H_(2)O_(2)` solution containing `x% H_(2)O_(2)` by weight requires `x mL of a KMnO_(4)` solution for complete oxidation under acidic condition. The normality of `KMnO_(4)` solution is

Options

A. `1N`
B. `2N`
C. `3N`
D. `0.5 N`

Answer

B

Explanation

`100` g of `H_(2)O_(2)` sample solution contains`=xg` of `H_(2)O_(2)`
`3.4` g of `H_(2)O_(2)` sample solution contains=`x/100xx3.4`
Weight of `H_(2)O_(2)=(3.4x)/100`
Eq of `H_(2)O_(2)=(3.4x)/100xx1/17`
mEq of `H_(2)O_(2)=(3.4x)/(100xx1/17)xx1000=(34x)/17=2x`
mEq of `KMnO_(4)=x xxN`
`x xxN=2x`
`N=2`