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

  • question_answer
    Colloid of which one of the following can be prepared by electrical dispersion method as well as reduction method?

    A) Sulphur            

    B) Ferric hydroxide

    C) Arsenious sulphide

    D) Gold

    Correct Answer: D

    Solution :

    [d] Gold by Bredig's method (Dispersion method) and by reduction method \[AuC{{l}_{3}}\]+ Tannic acid \[\to \] Gold sol


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