MCQOPTIONS
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MCQOPTIONS
| 1. |
Which of the following metal has a nonprotective oxide? |
| A. | Cadmium (CdO<sub>2</sub>) |
| B. | Copper (Cu<sub>2</sub>O) |
| C. | Chromium (Cr<sub>2</sub>O<sub>3</sub>) |
| D. | Silicon (SiO<sub>2</sub>) |
| Answer» B. Copper (Cu<sub>2</sub>O) | |