Experience the power of community-driven knowledge on IDNLearn.com. Ask any question and receive comprehensive, well-informed responses from our dedicated team of experts.

Which of the following salts form coloured solutions when dissolved in water?
I. ScCL3
II. FeCl3
III. NiCl2
IV. ZnCl2
A. I and II only
B. II and III only
C. III and IV only
D. I, II, III and IV