Answer:
The limiting reactant is CrCl3
Explanation:
In a reaction, the limiting reactant is that reactant which is present in a quantity that is less than the quantity required.
The amount of product formed depends on the concentration of the limiting reactant.
The excess reactant still remains even after the reaction is completed.
Since the purple product still had some white spots, then KCl was definitely in excess.
If that is the case, then CrCl3 is the limiting reactant.