Redox Reactions And Electrochemistry Ques 374
Question: Oxidation number of cobalt in $ K[Co{{(CO)}_4}] $ is [KCET 1996]
Options:
A) + 1
B) + 3
C) -1
D) -3
Show Answer
Answer:
Correct Answer: C
Solution:
$ K[\overset{*}{\mathop{C}},o{{(CO)}_4}] $ $ 1+x+0=0;x=-1 $ .