Q. In the coordination compound, $K_{4}\left\lbrack Ni(CN)_{4} \right\rbrack,$oxidation state of nickel is

A) $- 1$
B) +1
C) 0
D) +2
Explanation

(c)
$+ 1 \times 4 + x - 1 \times 4 = 0$
$4 + x - 4 = 0 \Rightarrow x = 0$ for Ni

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.