Question

Which are overall nonpolar molecules?
1.) CO2
2.)CCI4
3.)BH3
4.)H2O
5.)CHCL3

Answer 1

Answer:

Dipole moment:- The polarity of covalent bond can be conveniently measured in terms of physical quantity called dipole moment.

(i) (Refer to Image 1)

(ii) (Refer to Image 2)

(iii) (Refer to Image 3)

(iv) (Refer to Image 4)

⟶ Above molecules have dipole moment zero. Because dipoles of the bond cancel each other.

Answer 2

Answer:

1.)CO2

2.)CCl4

3.)BH3

Explanation:

CO2 is a balanced linear molecule, and CCl4 and BH3 have an equal polarity with a symmetrical arrangement of bonds.

H2O is a bent molecule, which means that the hydrogen atoms do not totally cancel out the polarity of the molecule. In CHCl3, the bonds between carbon and chlorine are different from the bond between carbon and hydrogen. Therefore, H2O and CHCl3 are not nonpolar.