Railways General Science & Technology Man Made Materials Sample Paper Man-Made Materials-I Sample Test Paper-23

  • question_answer
    Which one among the following is the chemical formula of gypsum, which is an ingredient of cement?

    A)  \[C{{a}_{2}}Si{{O}_{4}}\]     

    B)  \[CaS{{O}_{4}}.2{{H}_{2}}O\]

    C)  \[CaO\]

    D)  \[CaS{{O}_{4}}.3{{H}_{2}}O\]

    Correct Answer: B


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