Question

Comment on the statement that "colloid is a substance but a state of substance"

Answer 1

Answer:

The nature of the substance whether colloid or crystalloid depends upon the particle size. When the size of the solute particles lies between 1000-10000 pm, it behaves like a colloid and in case it is less than this value, it gives the characteristics of crystalloid. Thus, colloid is not a substance but it is state of a substance which depends upon the particle size.

Or

We can say that colloid is not a substance but a state of a substance Which is dependent on the size of particle colloidal state is intermediate between a true solution and a suspension. when a size of substance is between 1nm to1000nm it behaves as colloid otherwise not.

I hope it's help you