Question

Which one of the following elements reacts with steam?

• A. C
• B. Ge
• C. Si
• D. Sn

Answer 1

Answer: (D)

$C,Si$ and $Ge$ do not react with water while Sn reacts with steam and forms $Sn{O}_2$ and $H_2$.

$Sn(s)+2H_{2}O(g)\stackrel{\mathrm{\Delta }}{\to }Sn{O}_2(g)+2H_2(g)$