Question

How many molecules among the structures given above have zero dipole moment? $\uparrow$

Answer 1

The correct answer is 5.

$CC{l}_4$,$C{O}_2$,$BeC{l}_2$,$SnC{l}_2$ have zero dipole moment.

Dipole moment can be defined as the product of magnitude of charges and the distance of separation between the charges.it is base on electronegativity of the atom.the atom having more electronegativity than less electronegative atom has direction of dipole moment towards more electronegative atom.

The compound having zero dipole moments are shown in the figure. The rest of the compounds have non zero dipole moment due to lone pairs.