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Variable Oxidation States

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Question

give the formula of potassium dichromate

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Solution

Potassium dichromate:
Its chemical formula is K₂Cr₂O₇.
In this chromium is present in +6 oxidation state.
It is most commonly used as an oxidizing agent.
It is very bright red-orange in color.
It is also known as Chromic caid.

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