Question

__________________increases with the increase in ${\mathrm{HO}}^{-}$ ions.

Answer 1

Base:

1. A base is a compound that when dissolved in water yields hydroxyl ions (${\mathrm{HO}}^{-}$).
2. Also according to Lewis's concept of bases, the atoms which donate lone pair of electrons to other atoms are bases.
3. They are bitter to taste.

Basic strength:

1. As the concentration of Hydroxyl ion increases pH value increases.
2. The pH values associated with bases are often higher than $7$.
3. From $7to14$ is a pH range of base or alkalies.
4. As the value of pH increases more than 7 the basicity increases.

Hence, the basic strength increases with the increase in ${\mathrm{HO}}^{-}$ ions.