Question

The metal that products $H_2$ with both dil $HCl$ and $NaOH (aq)$ is

• A. Zn
• B. Mg
• C. Ca
• D. Fe

Answer 1

Answer: (A)

Zn

Answer 2

$Zn$ produces $H _{2}$ with both dil. $HCl$ and $NaOH ( aq )$. The corresponding reactions are: $Zn +2 HCl \rightarrow ZnCl _{2}+ H _{2} \uparrow$ $Zn +2 NaOH \rightarrow Na _{2} ZnO _{2}+ H _{2} \uparrow$