MCQ
Which of the following statement is correct
- A${\left[ {Cu{{\left( {N{H_3}} \right)}_6}} \right]^{2 + }}$ is a colourless ion
- B${\left[ {Zn{{({H_2}O)}_6}} \right]^{2 + }}$ ion is blue coloured
- C${\left[ {Ni{{\left( {CN} \right)}_4}} \right]^{2 - }}$ ion has a tetrahedral shape
- ✓Nickel dimethyl glyoxides is red in colour
