Which gas/gases evolve (s) when sodium metal is reacted with at room temperature?

Options

A. Oxygen only
B. Hydrogen only
C. Sodium vapour and hydrogen
D. Hydrogen and water vapour

Answer

C

Explanation

When sodium metal is haated with water at room temperature, it gives some vapours of sodium and ` H_(2)(g)` due to its highly exothermic nature. The reaction occurs as follows :
` 2Na "(metal)" + H_(2) to NaOH + (1)/(2) H_(2) + Na` (vapours) .