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    Question

    Which of the following is NOT correct about the use of

    Quick lime?
    A Manufacturing of cement Correct Answer Incorrect Answer
    B Manufacture of sodium carbonate Correct Answer Incorrect Answer
    C Purification of sugar Correct Answer Incorrect Answer
    D used to extinguish fire Correct Answer Incorrect Answer

    Solution

    (i) It is an important primary material for manufacturing cement and is the cheapest form of alkali. (ii) It is used in the manufacture of sodium carbonate from caustic soda. (iii) It is employed in the purification of sugar and in the manufacture of dye stuffs.

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