Question

formula of oxide of iron formed on passing steam over hot iron is _______​

Answer 1

Answer:

Fe3O4

this is the correct answer.

Answer 2

Explanation:

The molecular formula of oxide of iron which form on passing steam over it is Fe3O4. Iron only reacts with gaseous form of the water which is also known as the steam. Also ,the iron needs to be red hot to participate in this chemical reaction.