Final answer:
The presence of a net dipole moment in a molecule depends on its structure and symmetry. SeS2, PCl3, and ClNO could have net dipole moments based on their molecular geometry.
Step-by-step explanation:
In molecular geometry, the presence of a net dipole moment depends on the overall structure and symmetry of the molecule. If the individual bond dipole moments cancel each other out, there is no net dipole moment. However, if the molecule has an asymmetrical charge distribution, it will have a net dipole moment.
Out of the given options, the molecules that could have net dipole moments are:
(b) SeS2
(c) PCl3 (P is the central atom)
(d) ClNO (N is the central atom)