Q.

FeSO4 + 2 NaOH→FeOH2+Na2SO4. Equivalent weight of FeSO4in the given reaction is M=molar mass of FeSO4

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a

M

b

M2

c

M3

d

2M3

answer is B.

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Detailed Solution

The given reaction is not a redox reaction. FeSO4  is acting like a salt. Valency of Fe in the salt  = 2 Fe+2.Valency of a salt = net charge of cation or net charge of anionEquivalent Weight =M2
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FeSO4 + 2 NaOH→FeOH2+Na2SO4. Equivalent weight of FeSO4in the given reaction is M=molar mass of FeSO4