Answer:

Correct option is A)

MnO

4

−

+5Fe

2+

+8H

+

→5Fe

3+

+Mn

2+

+4H

2

O

1 mole of KMnO

4

corresponds to 5 equivalents.

The normality of KMnO

4

solution is 0.1N.

Hence, the molarity of KMnO

4

solution is

5

0.1

=0.02 M.

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