Question

and suspensions are heterogeneous in nature. Suspensions can be easily filtered whereas colloidal sols require special technique of filtration. Colloidal sols show some specific characteristics which true solution do not exhibit.

18. What kind of mixture will you get if 1 g of calcium carbonate is shaken with water?

a. Suspension

b. Colloidal

c. True solution

19. The mixture of starch and water will exhibit particle size:

a. Above 1000nm

b. 1-100nm

c. Below 0.1nm



d. 0.1-1nm

20. Which of the following substance on dissolution in water form a mixture which does not show Tyndall effect?

a. Clay

b. Magnesium carbonate

c. Magnesium chloride

d. Sulphur powder​

Answer 1

Answer:

(12)

(a) appeared/ teacher/no/ in fifth/ today/ period

(b) having/ we/ were /a/time/ great

(c) our / teacher / search/ monitor/ of the/ out in/ went

(d) he /to announce/ returned/ that/ was/ Mrs. Singham/ absent