MCQOPTIONS
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MCQOPTIONS
| 1. |
Which of the following is amphoteric? |
| A. | CrO |
| B. | Cr<sub>2</sub>O<sub>3</sub> |
| C. | CrO<sub>5</sub> |
| D. | CrO<sub>3</sub> |
| Answer» C. CrO<sub>5</sub> | |