Question

Give one example of a hydroxide which is insoluble in water.

Answer 1

1. Hydroxide

Hydroxides are basic compounds that are either soluble or insoluble in water. The molecular formula of hydroxides contains the oxygen and hydrogen atoms bonded together by a single bond. The dissociation of hydroxide compounds yields a negatively charged ion containing hydrogen and oxygen. So it can also act as a nucleophile.

2. Example of hydroxides

There are a number of hydroxides. The important hydroxides are Sodium hydroxide (NaOH) and Potassium hydroxide (KOH). They are highly soluble in water.

Thus, an example of a hydroxide that is insoluble in water is Magnesium hydroxide $\left[\mathrm{Mg}{\left(\mathrm{OH}\right)}_2\right]$. This is because of the strong bond existing between Magnesium and Hydroxyl ions.