Haryana PMT Haryana PMT Solved Paper-2009

  • question_answer
    The use of alums in purifying muddy water involves

    A)  absorption      

    B)  adsorption

    C)  dialysis          

    D)  coagulation

    Correct Answer: D

    Solution :

                    Alum is a coagulating agent and cause coagulation of small mud particles which are then removed by sedimentation, (.ie, settling process).


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