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Question
Activated charcoal is used to remove colouring matter from pure substances. It works by the principle of :
Activated charcoal is used to remove colouring matter from pure substances. It works by the principle of :
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Solution
The correct option is D Adsorption
Activated charcoal is a fine odourless black coloured powder. It acts as strong adsorbent, allowing it to bind effectively to atoms, molecules or ions. Activated charcoal exhibits antibacterial effect by absorbing harmful microbes from wounds. The surface of charcoal has capability to attract and restrict the molecules of their immiscible phases with which it is brought into contact. These molecules remain at surface. This property is termed as adsorption. Therefore, activated charcoal is used to remove colouring matter from pure substance by adsorption.
Hence, Option (d) is correct
Activated charcoal is a fine odourless black coloured powder. It acts as strong adsorbent, allowing it to bind effectively to atoms, molecules or ions. Activated charcoal exhibits antibacterial effect by absorbing harmful microbes from wounds. The surface of charcoal has capability to attract and restrict the molecules of their immiscible phases with which it is brought into contact. These molecules remain at surface. This property is termed as adsorption. Therefore, activated charcoal is used to remove colouring matter from pure substance by adsorption.
Hence, Option (d) is correct
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