Question

Comment on the statement that "colloid is not a substance but state of a substance."

Answer 1

Yes because they are mixed in colloidal solutions and scatter beam of light

Answer 2

$\textbf{Hello Mate....}$

$\textbf{Question}$>>>Comment on the statement that "colloid is not a substance but state of a substance."

$\textbf{Answer}$>>>>

Thomas Graham in 1861 observed that certain solute such as starch, glue, gelatin etc. could not pass through the pig bladder membrane while the ordinary solutes such as sodium chloride, urea, sugar etc. can easily do so. he called the former solutes as colloids while the latter were called crystalloids.

However , the above classification of solutes into crystalloids and colloids proved unsatisfactory because a particular substance would be crystalloid in one solvent and a collidal in the other.

For Example>>>>>

In a aqueous solution Nacl is a crystalloid, while in Benzene, it behaves as colloid.similarly, soap is a typical colloid in water but it acts as a crystalloid in alcohol.

Further studies of the behavior of these solutes have shown that the nature of the substances whether colloid or crystalloid depends upon the particles size. when the size of the particles is between $\upper{10}^-9$ m to $\upper{10}^-6$ m , it behaves like a colloid and in case of , it is less than it's range, it gives the characteristics of crystalloid.

Thus,Colloid Is Not A Substance But It Is A State Of A Substance Which Depends Upon The Molecular Size.

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@karangrover12