Question

Is sodium hydroxide an alkali?

Answer 1

Sodium hydroxide: Sodium hydroxide is a compound which has ${\mathrm{OH}}^{-}$ ion.

1. It is a base and highly soluble in water.
2. The reaction is given as- $\mathrm{NaOH}\left(\mathrm{aq}\right)+{\mathrm{H}}_2\mathrm{O}\left(\mathrm{aq}\right)\to {\mathrm{Na}}^{+}\left(\mathrm{aq}\right)+{\mathrm{OH}}^{-}\left(\mathrm{aq}\right)$
3. Sodium hydroxide is a strong alkali as it has a high degree of dissociation.
4. The pH of sodium hydroxide comes to 12.

Hence, sodium hydroxide is an alkali.