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| Q. |
Which of the following metals is NOT obtained by reduction using carbon? |
| A. | Copper |
| B. | Sodium |
| C. | Iron |
| D. | Zinc |
| Answer» B. Sodium | |
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Explanation: Metals such as zinc, iron and copper are present in ores as their oxides. Each of these oxides is heated with carbon to obtain the metal. |
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