Diople moment of which compound is not zero ?

Dipole moment of which compound will zero ?

Magnetic moment of which of the following is zero

Which one of the following compounds has non zero dipole moment ?

Which one of the following compounds has non zero dipole moment?

Identify the correct statements from the following. (1) The dipole moment of CO_(2) and BF_(3) is zero (2) The dipole moment of NF_(3) is higher than the diople moment of NH_(3) (3) The dipole moment of HI is lower than the dipole moment of HCl