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| Q. |
An example of semiconductor is - |
| A. | German silver |
| B. | Germanium |
| C. | Phosphorous |
| D. | Arsenic |
| Answer» B. Germanium | |
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Explanation: Purified germanium is a semiconductor, with appearance most similar to elemental silicon. Like silicon, germanium naturally reacts and forms complexes with oxygen in nature. Unlike silicon, it is too reactive to be found naturally on Earth in the free (native) state. |
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