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  5. Structure of Atom / परमाणु संरचना

Railways General Science & Technology Structure of Atom / परमाणु संरचना Sample Paper Structure of Atom Sample Test Paper-14

  • question_answer
    Radioactive isotope of hydrogen is

    A)  Hydride ion      

    B)  tritium

    C)  protium

    D)  deuterium

    Correct Answer: B

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