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SSC Sample Paper SSC CGL - Sample Paper-11

  • question_answer
    Which substance is used to retard the setting action of cement?

    A) \[CaO\]             

    B) \[A{{l}_{2}}{{O}_{3}}\]

    C) \[CaS{{O}_{4}}.\,2{{H}_{2}}O\]         

    D) \[N{{a}_{2}}O+{{K}_{2}}O\]

    Correct Answer: C

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