Question

In the coordination compound K4[Ni(CN)4], the oxidation state of nickel is :

• A. – 1
• B. 0
• C.
  • 1
• D.
  • 2

Answer 1

Answer: (B)

0

Answer 2

4K+[Ni(CN)4]4– ; let the oxidation state of nickel is x, then x + 4 (–1) = –4

So, x = 0