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Coordination and Oxidation Number

Determine the...

Question

Determine the oxidation state of Cr in $[C r (N H_{3})_{4} C l_{2}] C l$

A

+ 3

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B

-3

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C

2

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D

4

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Solution

The correct option is A + 3
$N H_{3}$ is 0
each $C l$ inside the brackets is -1
the final $C l$ is -1
sooxidation staate of $C r$ is +3.

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