Q. 1 E4.4( 19 Votes )
When steam is pas A. ferric hydroxide and hydrogen
B. magnetic iron oxide and hydrogen
C. ferrous hydroxide and hydrogen
D. ferrous oxide and hydrogen
Answer :
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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