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Which of the following oxides of Cr is a...

Which of the following oxides of Cr is amphoteric.

A

`CrO_2`

B

`Cr_2O_3`

C

`CrO_5`

D

`CrO_3`

Text Solution

Verified by Experts

The correct Answer is:
a
Acidic nature of oxides increases with the increase in O.S. Of the metal atom e.g. `Cr_2O_3` is basic. `CrO_2` is acidic `CrO_5` is also acidic in nature.
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