GKFix MCQ Question

What is the main structural difference between PCl5 in the gas phase and in the solid state?

• A. Gas phase: ionic; Solid state: molecular
• B. Gas phase: polymeric; Solid state: monomeric
• C. Gas phase: molecular with trigonal bipyramidal geometry; Solid state: ionic with [PCl4]+ and [PCl6]- ions
• D. There is no significant structural difference