JAMB Chemistry 2002 Question 44

Question 44

Chemical Bonding

Which of the following chlorides would exhibit the least ionic character?

  1. A.MgCl2
  2. B.CaCl2
  3. C.LiCl
  4. D.AlCl3
Show the answer and explanation

Answer: D (AlCl3)

Explanation

The small, highly charged Al3+ ion strongly distorts the chloride ion's electrons, so AlCl3 is largely covalent.