Fill in the blanks1. When the valency of ion is high …….. power is

Fill in the blanks1. When the valency of ion is high …….. power is increased in colloids. 2. The smaller the …….. value, greater will be precipitation of colloids.3. …….. is added to gold sol to protect it.4. …….. introduced the term gold number as a measure of protecting power of a colloid. 5. An oil in watrer emulsion containing potassium soap as emulsifying agent can be converted into water in oild emulsion by adding …….. or …….. 6. Synthetic polymers like polystyrene, silicones and PVC, are …………7. …….. colloid is used as eye lotion. 8. …….. protected by gelatin is known as Argyrol. 9. …….. salts arc used in tanning of leather. 10. Natural honey is distinguished artificial honey by adding ……..

Answer»

1. precipitation

2. flocculation

3. geLatine sol

4. Zsigmondy

5. CaCl₂ , AlCl₃

6. colloids

7. Argyrol

8. Silver sol

9. chromium

10. Tollens reagent (or) Ammoniacal AgNO₃