Question

Which of the following statements are true? Select all that apply.A. All other factors being the same, dispersion forces between linear molecules are greater than dispersion forces between molecules whose shapes are nearly spherical.B. For the halogens, the dispersion forces increase while the boiling points decrease as you go down the column in the periodic table from F2 to I2 .C. For molecules with varying molecular weights, the dispersion forces may not become stronger as the molecules become more polarizable.D. The smaller the atom, the less polarizable it is.E. In terms of the total attractive forces for a given substance, dipole-dipole interactions, when present, are always larger than dispersion forces.

Answer 1

Answer:

D and E

Explanation:

According to Fajan's rules, a large ion size favours polarizability hence small ions are less polarizable.

Also, permanent dipole interaction leads to greater attraction between molecules than weak vanderwaals forces. Permanent dipoles generally lead to higher boiling and melting points.