CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2007

  • question_answer
    When a sulphur sol is evaporated sulphur is obtained. On mixing with water sulphur sol is not formed. The sol is

    A)  lyophilic

    B)  reversible

    C)  hydrophobic

    D)  hydrophilic

    Correct Answer: C

    Solution :

    Hydrophobic sol are irreversible in nature. They have no affinity between the dispersed phase and the dispersion medium \[({{H}_{2}}O)\]. Further once precipitated, they do not form the colloidal sol by simple addition of water.


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