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| Q. |
Which of the following metals can deposit copper from copper sulphate solution? |
| A. | platinum |
| B. | Mercury |
| C. | Iron |
| D. | Gold |
| Answer» C. Iron | |
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Explanation: The iron displaces copper from its salt, to make iron sulfate solution and deposit a thin coating of metallic copper on the surface of the metal. In general, any metal higher than copper in the "electromotive series" will displace copper from copper sulfate solution. |
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