Which is called chromic anhydride?

C r O

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{C r}_{2} O_{3}

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C r O_{3}

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C r O_{2}

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Solution

The correct option is C $C r O_{3}$
CrO3 is regarded as the anhydride of chromic acid. It is one of the most powerful oxidizers known.

Chromic acid is a brilliant red crystalline substance essentially CrO₃ that is made from sodium dichromate and sulfuric acid and that is used specially in chromium plating and as a oxidising agent

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C r O_{3}

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M n_{2} O_{7}, C r O_{3}, C r_{2} O_{3}, C r O, V_{2} O_{5}, V_{2} O_{4}

C r O_{3}

Which of the following are amphoteric oxides?

$M n_{2} O_{7}, C r O_{3}, C r_{2} O_{3}, C r O, V_{2} O_{5}, V_{2} O_{4}$

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