Question

a) A salt having an ionic, a covalent and not a coordinate valent bond is?
b) A molecule of two non-metals having two lone electron pairs is? ​

Answer 1

Answer:

A coordinate bond (also called a dative covalent bond) is a covalent bond (a shared pair of electrons) in which both electrons come from the same atom. A covalent bond is formed by two atoms sharing a pair of electrons. The atoms are held together because the electron pair is attracted by both of the nuclei. In the formation of a simple covalent bond, each atom supplies one electron to the bond - but that does not have to be the case.