Which One of the Following Substances Is Most Likely Composed

Multiple Choice

Which one of the following substances is most likely composed of ions rather than distinct formula units, when it is in the solid state?

A) CaCl₂, m.p. +772°C
B) SnCl₄, m.p. -33°C
C) SbCl₅, m.p. +2.8°C
D) TiCl₄, m.p. -25°C
E) VCl₄, m.p. -28°C