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AIIMS AIIMS Solved Paper-2005

  • question_answer
    The chemical formulae of Plaster of Paris is:

    A)  \[CaS{{O}_{4}}.2{{H}_{2}}O\]

    B)                                         \[Ca{{(OH)}_{2}}\]              

    C)                                                         \[CaS{{O}_{4}}.1/2{{H}_{2}}O\]

    D)                         \[{{C}_{2}}{{H}_{5}}OH\]                                             

    Correct Answer: C

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