Of the three metals X, Y and Z. X reacts with cold water, Y with hot water and Z with steam only. Identify X, Y and Z and also arrange them in order of increasing reactivity
X is sodium, Y is magnesium and Z is iron.
X is sodium, Y is magnesium and Z is iron.
2Na + H2O → 2NaOH + H2
Mg + H2O → Mg(OH)2 + H2
3Fe + H2O → Fe3O4 +4 H2
Their sequence in reactivity series is as follows:
Fe < Mg < Na.
