SSC MTS EXAM

Detailed explanation-1: -In a diatomic molecule with two identical atoms, there is no difference in electronegativity, so the bond is nonpolar or pure covalent.

Detailed explanation-2: -Any bond between two identical atoms is non-polar since the electronegativities of the two atoms is identical. The simplest examples are the diatomic molecules such as H2, N2, and F2. The C-C bond in ethane, H3C-CH3, is also non-polar.

Detailed explanation-3: -The Octet rule only applys to molecules with covalent bonds. A molecule is polar if the shared electrons are equally shared. A molecule is nonpolar if the shared electrons are are equally shared. Methane gas (CH4) has a nonpolar covalent bond because it is a gas.