Question

Which of the following set of molecules will have zero dipole moment?
(NEET 2020)

Answer 1

Symmetrical molecules have zero dipole moment.
$B{F}_3,Be{F}_2,C{O}_2,\text{and}$ 1,4-dichlorobenzene all have symmetrical structure.

Hence, they have zero dipole moment.
Therefore, option (B) is the correct answer.