Answer:
a) CuCl2
b) NiCl2
c) CoCl2
Step-by-step explanation:
The formula for the given complexes are as follows -
a) Chloro Complexes of the Copper(II) - CuCl2
b) Nickel(II) Complexes of the Copper(II) - NiCl2
c) Cobalt(II) Complexes of the Copper(II) - CoCl2