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    Question

    The chemical formula for

    Gypsum:
    A CaSO4.5H2O Correct Answer Incorrect Answer
    B CaSO4.2H2O Correct Answer Incorrect Answer
    C CaSO4.4H2O Correct Answer Incorrect Answer
    D None of these Correct Answer Incorrect Answer

    Solution

    The chemical formula for gypsum is CaSO4·2H2O.

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