Q. 4. Explain the nature of the covalent bond using the bond formation in .
Carbon has four electron in its outermost shell and needs to gain or lose four electrons to attain noble gas configuration. Carbon overcomes this problem by sharing its valence electrons with other atoms of carbon or with atoms of other elements.
Of the four electrons, three are shared with hydrogen atoms and one with chlorine atom. Thus it has three (C-H) and one (C-Cl) covalent bonds.
These bonds formed by sharing of electrons are known as covalent bonds. Carbon, hydrogen and chlorine attains the nearest noble gas configuration of Ne, He and Ar respectively.