Colloids Around Us

Describe the role of colloids in sewage disposal.

Name the dispersed phase and dispersion medium in blood and smoke.

What is the role of colloids in our daily life?

Chromium salt is used for making leather hard by the process of _____.

What do you mean by 'tanning' of leather?

Why colloids are used in the preparation of photographic plates and films?

Colloids are used in the preparation of photographic plates and films.

_____ are used in the preparation of photographic plates and films.

Describe the use of colloid in photographic plates and films.

Foam rubber is an example of _____ colloid.(gas in gas/gas in liquid)

Which of following are application of colloid particle?

Write a note on latex is colloidal solution of rubber particle which are negatively charged.

Explain the formation of rubber from latex.

Mutual _____ takes place when an animal hide is soaked in tannin.

Explain the process of hardening of leather.

The filtration device which is used for the precipitation of smoke is _____.

Give reasons for the term observations: Leather gets hardened after tanning.

Which of the following is a cationic detergent?

Give reasons.

Sky seems blue in color.

Electrophoresis is a process in which-