Q1 of 18 Page 9

When steam is passed over red hot iron we get the following products.

When steam is passed over red-hot iron, the magnetic iron oxide is produced and hydrogen gas is released. There is no hydrogen in the product which contains iron, therefore hydroxides would not be an option. Ferrous oxide is FeO and hence it would not be an option.


3Fe + 4H2O(steam) → Fe3O4 + 4H2

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