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Q.

Number of moles of electrons involved in the reaction during formation of 1 mol of Fe3O4 according to the reaction Fe+H2O⟶Fe3O4+H2 will be:

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a

8

b

1

c

3

d

5

answer is D.

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Detailed Solution

The reaction can be given as,

3Fe+H2O⟶Fe3O4+H2       ⇒  8e-    

Here, the number of moles of electrons involved in the reaction is 8.

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