Question

Which of the following molecules is a polar molecule?

• A.
• B.
• C.
• D.

Answer 1

Answer: (D)

A polar molecule is a molecule containing polar bonds, where the sum of all the bonds dipole moment is not zero.
In case of $H_{2}O$, the bonds are inclined at an angle, so the net dipole moment is non-zero. Hence, $H_{2}O$ Is a polar molecule while in all other cases the dipole moment are balanced, so the net moment is zero.