Redox Reactions And Electrochemistry Ques 463
Question: The oxidation number of nickel in $ K_4[Ni{{(CN)}_4}] $ is [JIPMER 1999]
Options:
A) - 2
B) - 1
C) + 2
D) 0
Show Answer
Answer:
Correct Answer: D
Solution:
$ K_4[\overset{*}{\mathop{Ni}},{{(CN)}_4}] $ $ 4\times (+1)+x+4\times (-1)=0 $ $ +4+x-4=0\Rightarrow x=0 $ .