Redox Reactions And Electrochemistry Question 231

Question: Oxidation number of cobalt in $ K[Co{{(CO)}_4}] $ is [KCET 1996]

Options:

  • 1

  • 3

-1

-3

Show Answer

Answer:

Correct Answer: C

Solution:

$ K[\overset{*}{\mathop{C}},o{{(CO)}_4}] $ $ 1+x+0=0;x=-1 $ .

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