Question

N2,HCL,O2,H2O.Which among the above molecules do not show polar nature?give reason

Answer 1

Answer: HCl and $H_2O$ molecule does not have a polar nature.

Explanation:

Polar Molecules: Polarity of a molecule is defined on the basis of electronegativity difference that is each element should have some partial charges.

Non-polar Molecules: Non-polarity of a molecule is defined when there is no electronegativity difference that is there is no partial charge on any element.

We are given 4 molecules, in which two are polar in nature and other two are non-polar in nature.

In $N_2$ and $O_2$molecule, the electronegativity of two elements are same and the difference in electronegativity is not there, therefore they are a non-polar molecules. There is no partial charge on Nitrogen and Oxygen atoms.

In $H_2O$ molecule, the electronegativity of Oxygen and Hydrogen are not same and the difference in electronegativity is present, therefore it is a polar molecule. There are partial charges present on both oxygen and hydrogen.

In $HCl$ molecule, the electronegativity of Chlorine and Hydrogen are not same and the difference in electronegativity is present, therefore it is a polar molecule. There are partial charges present on both Chlorine and Hydrogen.

Answer 2

Answer:

H2 and H2O are polar compounds and others are non-polar molecules

Explanation:

Polar Molecules : Polarity of a molecule is defined on the basis of electronegativity difference that is each element should have some partial charges

partial charges.

Non-polar Molecules : Non-polarity of a molecule is defined when there is no electronegativity difference that is there is no partial charge on any element.