Question

The metal that reacts with the acid, as well as Alkali, is called …………

Answer 1

Zn is the metal that reacts with the acid, as well as Alkali.

Reason- Only a few metals can react with both acid and alkalies

• In metals, only Al and Zn come in these categories.
• Their oxide and hydroxide are amphoteric in nature and react with acid and base.

Reaction-

$$\begin{gathered} \mathrm{Zn}\left(\mathrm{s}\right)+\mathrm{NaOH}\left(\mathrm{aq}\right)\to {\mathrm{Na}}_2{\mathrm{ZnO}}_2\left(\mathrm{s}\right)+{\mathrm{H}}_2\left(\mathrm{g}\right)\left(\mathrm{Zinc}\mathrm{reaction}\mathrm{with}\mathrm{alkali}\right) \\ \left(\mathrm{Zinc}\right)\left(\mathrm{Sodium}\mathrm{hydroxide}\right)\left(\mathrm{Sodium}\mathrm{zincate}\right)\left(\mathrm{Hydrogen}\right) \\ \mathrm{Zn}\left(\mathrm{s}\right)+\mathrm{HCl}\left(\mathrm{aq}\right)\to {\mathrm{ZnCl}}_2\left(\mathrm{aq}\right)+{\mathrm{H}}_2\left(\mathrm{g}\right)(\mathrm{Zinc}\mathrm{reaction}\mathrm{with}\mathrm{acid}) \\ \left(\mathrm{Zinc}\right)\left(\mathrm{Hydrogen}\mathrm{chloride}\right)\left(\mathrm{Zinc}\mathrm{chloride}\right)\left(\mathrm{Hydrogen}\right) \end{gathered}$$

Hence, The metal that reacts with the acid, as well as Alkali, is Zinc (Zn).