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      Question

      Rod of which of the following metal is used in nuclear

      reactors to slow down the speed of the neutrons?
      A Scandium Correct Answer Incorrect Answer
      B Chromium Correct Answer Incorrect Answer
      C Cadmium Correct Answer Incorrect Answer
      D Vanadium Correct Answer Incorrect Answer

      Solution

      Control rods are rods, plates, or tubes containing a neutron absorbing materialsuch as boron, hafnium, cadmium, etc., used to control the power of a nuclear reactor.Control rods are used in a reactor to maintain the multiplication factor of the neutrons so as to ensure a safe operation of the reactor.┬а

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