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Railways Sample Paper RRB (Group D) Sample Test Paper-9

  • question_answer
    Which one among the following is used as a moderator in nuclear reactors?

    A)  Ozone 

    B)  Heavy hydrogen

    C)  Heavy water    

    D)  Hydrogen peroxide

    Correct Answer: C

    Solution :

    [c] In nuclear reactor heavy water (\[{{D}_{2}}\]O) used to slow down the speed of neutron i.e., act as moderator.


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