Multiple choice The formula for aluminium chloride is AlaClb, where a and b have the values 1 and 3 1 and 4 6 and 2 2 and 3 Reveal answer Fill a bubble to check yourself A Correct answer Explanation In the formula for aluminium chloride AlaClb, the respective values of a and b are 1 and 3 (i.e. AlCl3).