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Q.

Molecular weight of KMnO4 is "M". In a reaction KMnO4 is reduced to K2MnO4. The equivalent weight of KMnO4 is

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a

M/5

b

M

c

M/3

d

M/2

answer is A.

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Detailed Solution

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Oxidation state of Mn in KMnO4 is +7 and in K2MnO4 is +6. N-factor value is 1, therefore equivalent weight is equal to M/1 or M.

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