Does methane contain non-polar or polar covalent bond? Explain.

Answer 1

Methane contains nonpolar covalent bonds. This is because there is a very small difference in the electronegativity of Carbon and Hydrogen. Thus they are going to share their electrons fairly equally. Further, because each bond on the methane compound is the same (they are all C---H bonds), the molecule as a whole is also nonpolar.

I have attached a link to an electronegativity table where you can see that Carbon and Hydrogen have very similar values for electronegativity, about 2.2 and 2.5 respectively. Differently, however, would be Oxygen and Hydrogen, 3.4 and 2.2 respectively. They have significantly different electronegativities and thus would have a polar covalent bond between them.

https://www.thoughtco.com/definition-of-electronegativity-604347

Answer 2

A non-polar covalent bond occurs in a methane molecule. Here, in this molecule, no charge separation takes place since all the electrons are equally shared between the atoms of a molecule.