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9th Class Science Sample Paper Science Olympiad Model Test Paper-19

  • question_answer
    The chemical name of \[N{{a}_{2}}{{S}_{2}}{{O}_{3}}\]is:

    A) Sodium sulphate

    B) Sodium sulphurous oxide

    C) Sodium bi sulphate

    D) Sodium thiosulphate

    E) None of these

    Correct Answer: D

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