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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 negatively charged suspension of clay in water will need for precipitation the minimum amount of      [CPMT 1973]

    A)                 Aluminium chloride        

    B)                 Potassium sulphate

    C)                 Sodium hydroxide          

    D)                 Hydrochloric acid

    Correct Answer: A

    Solution :

                    Negatively charged sols require minimum amount of electrolyte having higher valence of cation.


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