Which one of the following elements reacts with steam?
Which one of the following elements reacts with steam?
C
$\mathrm{Ge}$
Si
Sn
Solution
C, Si and Ge do not react with water while Sn reacts with steam and forms $\mathrm{SnO}_2$ and $\mathrm{H}_2$.
$\mathrm{Sn}(\mathrm{s})+2 \mathrm{H}_2 \mathrm{O}(g) \stackrel{\Delta}{\longrightarrow} \mathrm{SnO}_2(g)+2 \mathrm{H}_2(g)$