⇛when two atoms having different electronegativities i.e.,attraction for electrons, are joined by a covalent bond,the shared pair of electrons forming the bond is attracted more towards the more electronegative atom of the two.As a result of this unequal distribution of the bonding electrons one end of the bond becomes relatively negative and the other positive i.e. a polarity developes within a bond.
An example of such a polar covalent bond is the one in HCl. The Cl atom with its greater electronegativity pulls the bonding electrons towards itself. As a consequence the Cl atom becomes partially negative and the H atom becomes partially positive. So the molecule is a dipolar...
An example of such a polar covalent bond is the one in HCl. The Cl atom with its greater electronegativity pulls the bonding electrons towards itself. As a consequence the Cl atom becomes partially negative and the H atom becomes partially positive. So the molecule is a dipolar...
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