Oxidation number of cobalt in K - Co Co 4- isA- -3B- -3C- -1D- -1

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Introduction to Oxidation and Reduction

Oxidation num...

Question

Oxidation number of cobalt in $K [C o (C o)_{4}]$ is

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-1

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-3

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K [C o {(C O)}_{4}]

K [C o (C O)_{4}]

The oxidation number of cobalt in K[Co(CO)₄] is

(i) +1

(ii) +3

(iii) −1

(iv) −3

Oxidation number of N in $(N H_{4})_{2} S O_{4}$ is

(O_{3})

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