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| 1. |
Comment on the statement : Colloid is not a substance but it is a state of substance. |
| Answer» Solution :Colloid : Colloid is a homogeneous mixture of two substance in which one substance is dispersed in another substance, Colloidal substance does not represent a seperate class of substance. It is a state of a substance which is dependent on the size of the particle. A colloid is FORMED when the size of the solute particle lies between 1 NM to 1000nm. Example : Soap DISSOLVES in water to form colloidal soap solution. WHEREAS it dissolves in alcohol to form a true solution. This SHOWS that a substance can be brought into a colloidal state by different methods. | |