Tag: chemical properties of metals

Questions Related to chemical properties of metals

$Zn + H _{2}O$ (steam) $\longrightarrow  A + B$


In the equation, A and B are :

chemistry metals reaction of metals reactions of metals chemical properties of metals

  1. $Zn$ and $H _2$

  2. $ZnH _{2}$ and $O _{2}$

  3. $ZnO _{2}$ and $H _{2}$

  4. $ZnO$ and $H _{2}$

Show answer
Correct Option: D
Explanation:

Zinc only when heated replaces hydrogen from steam thus forming oxides.

$Zn(s) +H _{2}O(g) \xrightarrow[\text{Above}\; 400^oC]{\Delta} ZnO(s)+H _2(g)$ .

Thus, the compounds A and B are $ZnO$ and $H _2$.