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      Question

      IC chips used in computers are usually made

      of:
      A Lead Correct Answer Incorrect Answer
      B Silicon Correct Answer Incorrect Answer
      C Chromium Correct Answer Incorrect Answer
      D Gold Correct Answer Incorrect Answer

      Solution

      Most ICs are made of┬аsilicon, which is abundant in ordinary beach sand. Pure crystalline silicon, as with other semiconducting materials, has a very high resistance to electrical current at normal room temperature

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