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Question

The oxidation state of chromium in chromium trioxide is?

A
+3
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B
+4
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C
+5
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D
+6
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Solution

The correct option is D +6
Let the oxidation state of Chromium be x. Oxidation state of oxygen is -2
Therefore, 1×(x)+3×(2)=0x6=0x=+6
Hence, Option D is the correct answer.

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