Question

Give examples of covalent compounds which contain
(a) one unshared pair of electrons
(b) two unshared pair of electrons.

Answer 1

$\left(a\right)$ Ammonia $\left(N{H}_3\right)$- It contains $1$ atom of Nitrogen which has one lone pair and $3$ electrons reacting with hydrogen. Therefore, $N{H}_3$ contains one unshared pair of electrons.
$\left(b\right)$ $O_2$ molecule- It contains two oxygen atoms with both the oxygen atoms containing $2$ unshared pair of electrons each. As refer to the above image.