Arrange the three ionic compounds sodium chloride, magnesium chloride, and aluminum chloride in order of increasing melting point. A) NaCl

Question

Arrange the three ionic compounds sodium chloride, magnesium chloride, and aluminum chloride in order of increasing melting point. A) NaCl < MgCl₂ < AlCl₃ B) MgCl₂ < NaCl < AlCl₃ C) AlCl₃ < MgCl₂ < NaCl D) AlCl₃ < NaCl < MgCl₂ E) NaCl < AlCl₃ < MgCl₂

Quizplus · Accepted Answer

The melting point increases with the charge density of the ions. AlCl3 has the lowest melting point due to its covalent character, followed by NaCl, and MgCl2 has the highest melting point due to stronger ionic bonds.

Arrange the Three Ionic Compounds Sodium Chloride, Magnesium Chloride, and Aluminum