Question

ICl has a higher boiling point than Br2. What is the best explanation for this?

A. Br2 experiences dipole-dipole interactions.
B. ICl experiences dipole-dipole interactions.
C. Br2 forms hydrogen bonds.
D. ICl experiences induced dipole-induced dipole interactions.

Answer 1

The answer is,

B. ICl experiences dipole-dipole interactions.

Just took the test (:

Answer 2

ICl has a dipole moment,while Br2 does not have it. The dipole moment increases the inter-molecular attractions between ICl molecules and causes that substance to have a higher melting point than bromine.
B. ICl experiences dipole-dipole interactions.