WB JEE Medical WB JEE Medical Solved Paper-2006

  • question_answer
    Which of the following is a use of alum?

    A)  Making explosives

    B)  Bleaching clothes

    C)  Water softening

    D)  All of the above

    Correct Answer: C

    Solution :

                     Alums are used as water-softner. These are also used in tanning of leather, as mordant in dyeing and to stop bleeding.


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