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Solution


Q.

The compound obtained on reaction of iron with steam is/are:
1 Fe2O3  
2 Fe3O4  
3 FeO  
4 Fe2O3 and Fe3O4  

Ans.

(2)

Iron does not react with cold or hot water, but it reacts with steam to form metal oxide and hydrogen gas.
3Fe+4H2O⟶Fe3O4+4H2​