Question

The ratio (x:y) of reactants Fe and H₂O in the given balanced chemical equation is 

xFe(s) + yH₂O(g) → Fe₃O₄ (s) + 4H₂ (g) 

(a) x:y = 2:3 

(b) x:y = 3:4 

(c) x:y = 1:4 

(d) x:y = 4:1

Answer 1

Correct answer is (b) x:y = 3:4 

The ratio (3:4) of reactants Fe and H₂O in the given balanced chemical equation is 

3Fe(s) + 4H₂O(g) → Fe₃O₄ (s) + 4H₂ (g)