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NEET Chemistry Surface & Nuclear Chemistry / भूतल और नाभिकीय रसायन Question Bank Self Evaluation Test - Surface Chemistry

  • question_answer
    Aluminium hydroxide forms a positively charged sol. Which of the following ionic substances should be most effective in coagulating the sol?

    A) \[NaCl\]           

    B) \[CaC{{l}_{2}}\]

    C) \[F{{e}_{2}}{{(S{{O}_{4}})}_{3}}\]

    D) \[{{K}_{3}}P{{O}_{4}}\]

    Correct Answer: D

    Solution :

    [d] \[Al{{\left( OH \right)}_{3}}\]is positively charged sol. \[{{K}_{3}}P{{O}_{4}}\] has greater negative charge. Hence, it is most effective in coagulation


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