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Variable Oxidation States

Which of the ...

Question

Which of the following are oxidation states that copper exhibits?

A

+1 and +3

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B

+2 and +1

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C

+1, +2 and +3

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D

None of these

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Solution

The correct option is B +2 and +1
$C u C l$ (+1) and $C u C l_{2}$ (+2), are compounds, which show two oxidation states of copper. As far as copper is concerned, these two are very common oxidation states apart from the elemental 0 state.

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