In a volumetric experiment, it was found that a solution of KMnO4 is reduced to MnSO4. If the normality of solution is 1N, then molarity of solution will be:
A
0.5M
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B
0.2M
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C
1M
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D
0.4M
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Solution
The correct option is B0.2M Normality=Molarity× Change in oxidation number +7KMnO4→+2MbSO4 Change in oxidation number =5 ∴N=M×5 1=M×5 M=0.2.