What is the dipole moment of the most stable conformer of 1,1,2,2-tetrafluoroethane? I want to know about the dipole moment of this molecule. I think the molecule has no dipole moment, but a book says me that it has a dipole moment.
The dipole moment is 2.45 Debye. The molecule is dipolar as you have asymmetrical electron distribution around both the carbon atoms. 

Source: Complete Structure of Gauche 1,1,2,2-Tetrafluoroethane Determined by Microwave
Spectroscopy, J. Phys. Chem. A, 2000, 104, 9489-9493.