Q.

Molecular weight of Mohr's salt is 392. Its equivalent weight when it is oxidised by KMnO4  in acidic medium is

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a

78.5

b

392

c

130.6

d

196

answer is A.

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Detailed Solution

Eq.wt=Mol.wtn

‘n’ for Mohr’s salt in acidic medium =1

Eq.wt=M.wt1=3921=392

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