The correct matching is as follows:
- A) HCCl has a dipole moment of 1.85 D, so it matches with II.
- B) NH₃ has a dipole moment of 1.07 D, so it matches with IV.
- C) H₂O has a dipole moment of 1.47 D, so it matches with I.
- D) NF₃ has a dipole moment of 0.23 D, so it matches with III.