MCQOPTIONS
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MCQOPTIONS
| 1. |
Which of the following is the overall reaction of rusting? |
| A. | 2Fe<sub>(s)</sub> 2Fe<sup>2+</sup> + 4e<sup> </sup> |
| B. | O<sub>2</sub> (g)+4H<sup>+</sup>(aq)+4e<sup> </sup> 2H<sub>2</sub>O(l) |
| C. | 2Fe<sub>(s)</sub> + O<sub>2</sub><sub>(g)</sub> + 4H<sup>+</sup><sub>(aq)</sub> 2Fe<sup>2+</sup><sub>(aq)</sub> + 2H<sub>2</sub>O<sub>(l)</sub> |
| D. | H<sub>2</sub>O H<sup>+</sup> + OH<sup> </sup> |
| Answer» D. H<sub>2</sub>O H<sup>+</sup> + OH<sup> </sup> | |