MCQOPTIONS
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MCQOPTIONS
| 1. |
The chemical formula of rust is ______ |
| A. | Fe<sub>1</sub>O |
| B. | Fe<sub>2</sub>O<sub>3</sub> |
| C. | Fe<sub>3</sub>O<sub>4</sub> |
| D. | Fe(OH)<sub>2</sub> |
| Answer» C. Fe<sub>3</sub>O<sub>4</sub> | |