Which one of the following has no dipole moment?

مندرجہ ذیل میں سے کون سا ڈوپول لمحہ نہیں ہے؟

Trans-1,2-Dichloroethene

1,1-Dichloroethene

1,2-Dichloroethene

None of these

In trans-1,2-dichloroethene, the dipoles of the two Cl atoms cancel out due to their opposite positions.

This results in zero net dipole moment, making it a non-polar molecule.