3.4 g sample of H(2)O(2) solution contai...

`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

`0.5`

`0.4`

`0.2`

Text Solution

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The correct Answer is:

Eq. mass of `H_(2)O_(2)=(34)/(2)=17`
Eq. of `H_(2)O_(2)=(3.4xxx)/(100xx17)`
`=Eq.` of `KMnO_(4)=x xx Nxx10^(-3)" "rArr" "N=2`
Molarity of `KMnO_(4)=(2)/(5)=0.4`

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