Question

N factor of feno3 =nh3+fe3+

Answer 1

Answer:

Explanation:

First of all n-factor does not have any sign i.e. it is never negative. So you don’t need to write +3.

Now, coming to your question, 3 is the n-factor of FeC2O4 and not Fe. In this compound, carbon is in +3 oxidation state and Fe is in +2 oxidation state. In acidic medium, Fe2+ is converted to Fe3+ and C2O2−4 is converted to CO2 . So, the oxidation number of carbon changes from +3 to +4. As, there are two carbon atoms, the net change in oxidation number is +2 and adding to this the increase in oxidation state of iron, the final increase in oxidation number is +3.

Hence, the n-factor of FeC2O4 is 3.

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