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| Q. |
Due to rusting the weight of iron - |
| A. | Decreases |
| B. | Increases |
| C. | Remains the same |
| D. | Uncertain |
| Answer» B. Increases | |
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Explanation: Corrosion of a block of metal - Iron to Iron Oxide (rust), Aluminum to Bauxite, Cooper to Cupric-oxide, or otherwise - does not change the weight of the metal in the system. |
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