MCQOPTIONS
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MCQOPTIONS
| 1. |
Which of the following reactions occurs when iron is immersed in (oxygenated) sea water? |
| A. | Fe==>Fe+2+2e, 2H++2e==>H2 |
| B. | Fe==>Fe+2+2e, O2+2H2O+4e==>4OH– |
| C. | Fe+2+2e==>Fe+2, 4H++O2+4e==>2H2O |
| D. | sea water?a) Fe==>Fe+2+2e, 2H++2e==>H2b) Fe==>Fe+2+2e, O2+2H2O+4e==>4OH–c) Fe+2+2e==>Fe+2, 4H++O2+4e==>2H2Od) Fe+2+2e==>Fe+2, 2H++2e==>H2 |
| Answer» C. Fe+2+2e==>Fe+2, 4H++O2+4e==>2H2O | |