Give reason as to why-hydrogen chloride can be termed as a polar covalent compound.
Polar covalent compound is formed by the atoms of different electronegativities. Hydrogen chloride is formed by sharing of electrons between hydrogen and chlorine atoms. This leads to the formation of a covalent bond between them to complete their octet (duplet in case of hydrogen) and achieve noble gas electronic configuration. There is difference in electronegativity of hydrogen and chlorine atom. The electronegativity of chlorine is higher than hydrogen. Due to which chlorine pulls the bonded pair of electron towards itself. Thus the bond formed between hydrogen and chlorine is known as polar covalent bond and compound is known as polar covalent compound.