Question

6. In which of the following does scattering of light takes place ? [ ]
a) Electrolytic solutions b) Colloidal solutions
c) Electro dialysis d) Alcohols
7. What can be observed when sunlight is passed through a colloidal solution ? [ ]
a) Adsorption b) Coagulation c) Tyndall effect d) Brownium motion
8. The size of colloidal particles are [ ]
a) 1 - 100 nm b) 100 - 1000 nm c) > 1000 nm d) < 1 nm
9. Which of the following pairs of colloidal solutions have dispersed phase as liquid and dispersing
medium as gas ? [ ]
a) Fog, mist b) Butter, milk c) Fog, smoke d) Smoke, foam
10. Which of the following, the components can be separated from the mixture by the process of the
filteration or decantation. [ ]
a) Colloids b) Suspensions c) True solutions d) All

Answer 1

6) b)colloidal solutions

7) c)tyndall effect

10)b)suspensions