Question

Which of the following statement is incorrect about the properties of $CuC{l}_2$?

• A. It crystallised as $CuC{l}_2.2H_{2}O$ of emerald green colour
• B. Its dilute solution is green in colour due to formation of $\left[Cu\right(H_{2}O{)}_6{]}^{2+}$ complex
• C. On addition of $KCl$ to its solution, colour changes into yellow due to the formation of $[CuC{l}_4{]}^{2-}$
• D. Its concentrated aqueous solution is green because of formation of $\left[Cu\right(H_{2}O{)}_6{]}^{2+}$ and $[CuC{l}_4{]}^{2-}$ complexes

Answer 1

The correct option is B Its dilute solution is green in colour due to formation of $\left[Cu\right(H_{2}O{)}_6{]}^{2+}$ complex

Answer (b)
In dilute solution it produces $\left[Cu\right(H_{2}O{)}_6{]}^{2+}$ which is blue in colour.