Write the correct formulae for the following coordination compounds:
(i) CrCl3.6H2O (violet with 3 chloride ions precipitated as AgCl)
(ii) CrCl3.6H2O (light green colour, with 2 chloride ions precipitated as AgCl)
(iii)CrCl3.6H2O (dark green colour, with 1 chloride ion precipitated as AgCl)