Question

What is the valency of copper in CuCl2​

Answer 1

1 and 2

Being a transition metal, copper exhibits variable valencies of 1 and 2. Copper forms two types of chlorides - cuprous chloride, Cu2Cl2, and cupric chloride, CuCl2. In the Cu2Cl2, the metal and chlorine atoms are 1:1 ratio and in CuCl2 the atomic ratio is 1:2. Therefore, the valencies of copper are 1 and 2.

Answer 2

$\huge\mathfrak\blue{♡Answer}$

1 and 2

1 and 2Being a transition metal, copper exhibits variable valencies of 1 and 2. Copper forms two types of chlorides - cuprous chloride, Cu2Cl2, and cupric chloride, CuCl2. In the Cu2Cl2, the metal and chlorine atoms are 1:1 ratio and in CuCl2 the atomic ratio is 1:2. Therefore, the valencies of copper are 1 and 2.