Question

A reddish brown element x on heating in air becomes y.when hydrogen gas is passed over heated y it again changes back into x.i) name x and y ii)name the chemical process iii) chemical equation involved in both the chang3s

Answer 1

(i)"x" is IRON
"y" is IRON OXIDE

(ii)oxidation-reduction process

(iii) 2fe + O2 -------) 2feO
feO + H2 -------) fe + H2O

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