JEE Main & Advanced Chemistry The s-Block Elements / s-ब्लॉक के तत्व Question Bank Alkaline Earth Metals

  • question_answer
    Portland cement is manufactured by using [CPMT 1986]

    A) Lime stone, clay and sand

    B) Lime stone, gypsum and sand

    C) Lime stone, gypsum and alumina

    D) Lime stone, clay and gypsum

    Correct Answer: D

    Solution :

    Lime stone - \[CaC{{O}_{3}}\] Clay - silica and alumina Gypsum - \[CaS{{O}_{4}}.2{{H}_{2}}O\]


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