Which of the following is a current statement?

Question

(1) Aqueous solutions of $cu^{+}$ and $Zn^{2+}$ are colourless

(2) Aqueous solutions of $cu^{2+}$ and $Zn^{2+}$ are colourless

(3) Aqueous solution of $Fe^{3+}$ is green in colour

(4) Aqueous solution of $MnO_4^{-}$ is colourless