Question

28) (a) List any four properties of a colloid and mention any two properties in which

colloids differ from suspension.

(b) Why does solution of sodium chloride not show tyndall effect whereas the mixture

of water and milk shows?

(c) Write one difference between concentration and solubility?​

Answer 1

Answer:

28) (a)Four properties of colloid are -

1)  A colloid is a heterogeneous mixture .

2) The size of particles of colloid is too small to be individually seen by naked eyes .

3) Colloids are big enough to scatter a beam of light passing through it and make its path visible.

4) They do not settle down when left undisturbed, that is, a colloid is quite stable.