Which of the following salts form coloured solutions when dissolved in water?
I. ScCL3
II. FeCl3
III. NiCl2
IV. ZnCl2
AI and II only
BII and III only
CIII and IV only
DI, II, III and IV
I. ScCL3
II. FeCl3
III. NiCl2
IV. ZnCl2
AI and II only
BII and III only
CIII and IV only
DI, II, III and IV