Which of the following compounds is likely to be coloured?

CHEMISTRY · Single correct · A Level · Chemistry · Transition metals and their chemistry · Transition metals and their chemistry

Problem

Which of the following compounds is likely to be coloured? (1)

\text{CuI}

(2)

\text{TiO}_2

(3)

\text{ScCl}_3

(4)

\text{V}_2\text{S}_3