Which of the following must be true for a molecule to be considered polar? (Select all that are true.)?

Question

Which of the following must be true for a molecule to be considered polar? (Select all that are true.)
1.The molecule must not contain polar bonds.
2. It must have a nonzero net dipole moment.
3.The molecule must contain polar bonds.
4.The molecule must be of a geometry in which the dipole moments of the bonds do cancel each other.
5. There must be a significant difference in electronegativities between bonded atoms.
6. It must have a net dipole moment equal to zero.
7. The molecule must be of a geometry in which the dipole moments of the bonds do not cancel each other out.

Answer 1

2, 3, 5, 7