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    Question

    What is used in nuclear reactor as a moderator. It is

    also known as Heavy Water?
    A Deuterium Oxide (D2O) Correct Answer Incorrect Answer
    B Sodium hydrogen carbonate (NaHCOโ‚ƒ) Correct Answer Incorrect Answer
    C Sucrose sugar (C12H22O11 ) Correct Answer Incorrect Answer
    D Calcium Oxychloride Ca(ClO)โ‚‚ Correct Answer Incorrect Answer

    Solution

    The correct answer is A

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