Question

Of the three metals X, Y, Z, X reacts with cold water, Y with hot water and Z with steam only. Identify X, Y, and Z. and also write their equations.

Answer 1

X is Na
2Na + 2H2O ➡2 NaOH + H2
Y is Mg
2Mg+ 2H2O ➡ 2MgOH + H2
Z is Fe