Question

    Activated charcoal is used to remove colouring matter

    from pure substances by which of the following process?
    A Oxidation Correct Answer Incorrect Answer
    B Reduction Correct Answer Incorrect Answer
    C Absorption Correct Answer Incorrect Answer
    D Adsorption Correct Answer Incorrect Answer

    Solution

    Adsorption is the adhesion of atoms, ions or molecules from a gas, liquid or dissolved solid to a surface. This process creates a film of the adsorbate on the surface of the adsorbent. Thus, in order to remove colouring matter from pure substances through activated charcoal, process of Adsorption is followed.

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