MCQOPTIONS
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MCQOPTIONS
| 1. |
Which of the following reactions occurs when iron is immersed in (oxygenated) sea water? |
| A. | Fe==>Fe<sup>+2</sup>+2e, 2H<sup>+</sup>+2e==>H<sub>2</sub> |
| B. | Fe==>Fe<sup>+2</sup>+2e, O<sub>2</sub>+2H<sub>2</sub>O+4e==>4OH<sup> </sup> |
| C. | Fe<sup>+2</sup>+2e==>Fe<sup>+2</sup>, 4H<sup>+</sup>+O<sub>2</sub>+4e==>2H<sub>2</sub>O |
| D. | Fe<sup>+2</sup>+2e==>Fe<sup>+2</sup>, 2H<sup>+</sup>+2e==>H<sub>2</sub> |
| Answer» C. Fe<sup>+2</sup>+2e==>Fe<sup>+2</sup>, 4H<sup>+</sup>+O<sub>2</sub>+4e==>2H<sub>2</sub>O | |