Question

Classify bases on the basis of their strength.

Answer 1

Classification on the basis of their strength:-

(i)Strong alkalis or bases:-

The alkalis or bases which undergo almost complete ionisation in aqueous solution are known as strong alkalis or bases.

Example:– $NaOH(aq.)\to {Na}^{+}$(aq) + ${OH}^{-}$(aq)

(ii) Weak alkalis or bases:-

The alkalis or bases which undergo only partial ionisation in aqueous solution are known as weak alkalis or bases.

Example – ${Ca\left(OH\right)}_2(aq.)\to$ ${Ca}^{2+}$ (aq) + ${2OH}^{-}$ (aq.)