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JEE Main & Advanced Chemistry Surface & Nuclear Chemistry / भूतल और नाभिकीय रसायन Question Bank Colloids Emulsion, Gel and Their properties with application

  • question_answer
    A coagulating agent frequently added to water to remove the suspended and colloidal impurities is

    A)                 Mohr salt            

    B)                 Alum

    C)                 Bleaching powder           

    D)                 Copper sulphate

    Correct Answer: B

    Solution :

                    Alum is a coagulating agent, frequently added to water to remove impurities from water because impurities contain negative charge and alum give positive charge particle for coagulation.


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