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Nomenclature of Coordination Compounds

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Question

Calculate oxidation number of $[C o (e n)_{2} C l_{2}]^{+}$ .

A

3

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B

2

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C

1

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D

4

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Solution

The correct option is A 3
Calculate oxidation number of $[C o (e n)_{2} C l_{2}]^{+}$ is $+ 3$
$X + 2 (0) + 2 (- 1) = + 1$
$X = + 3$ .
So oxidation number of $C O$ in $[C o (e n)_{2} C l_{2}]^{+}$ is $+ 3$ .
Hence option A is correct.

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