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Question

Which of the following are amphoteric oxides?

Mn2O7,CrO3,Cr2O3,CrO,V2O5,V2O4



A

V2O5, Cr2O3

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B

Mn2O7, CrO3

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C

CrO, V2O5

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D

V2O5, Mn2O7

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Solution

The correct option is C

V2O5, Cr2O3


Oxides in the lower oxidation state are basic and in higher oxidation state, they are acidic. In the intermediate state they are amphoteric.


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