1. less; the C-H bond in CHF3 is a non-polar
2. more; the C-F bonds are more polar than
the C-I bonds.
3. more; the C-H bond in CHF3 is a non-
4. less; the tetrahedral geometry decreases
the polarity of C-F bonds.
5. less; the three polar C-F bonds are sym-
metrical and cancel the dipole moments.
2 is the correct answer. The C-F bond IS more polar than the C-I bond. The molecules have the same symmetry and shape and both have 1 hydrogen. The only difference is the halogen. F is the most elecgtronegative element, more than I. Therefore, the C-F bond is more polar – making CHF3 the more polar molecule.Source(s): my M.S. in Chemistry