Answer: Option (b) is the correct answer.
Explanation:
When a molecule does not have a positive end and a negative end is called a then that molecule is known as non-polar molecule.
For example, methane is a non-polar molecule as it contains one carbon atom and four hydrogen atom which when bonded together does not have any charge.
Thus, we can conclude that a molecule that does not have a positive end and a negative end is called a non-polar molecule.
