Question

In the coordination compound, $K_4\left[Ni\right(CN{)}_4]$ , the oxidation state of nickel is :

• A. 0
• B. 1
• C. 2
• D. -1

Answer 1

The correct option is A 0

In the coordination compound, $K_4\left[Ni\right(CN{)}_4]$ , the oxidation state of nickel is 0.
x-4=-4 $\to$ x=0