How are colloids classified ? Give examples. 

How are the oxides classified ? Give two examples of each type.

What are organic compounds and how are they classified ? Give two examples of each type.

How are colloids classified on the basis of (i) physical states of components (ii) nature of dispersion medium (iii) interaction between dispersed phase and dispersion medium ?

How are the colloidal classified on the basis of the nature of interaction between dispersed phase and dispersion medium? Describe an important characteristic of each class. Which of these sols need stabilising agents for preservaion?

How are aliphatic amines classified ? Give the structural formula and an example of each group.

What are Associated Colloids ? Given an example.

How are the air pollutants classified ? Explain with examples.

What are the characteristics of the following colloids ? Give one example of each (i) Multimolecular colloids (ii) Lyophobic sol (iii) Emulsions.

What are ethers? How are they classified ? Give two methods by which diethyl ether can be prepared from ethanol. Discuss its important properties.

How is dihydrogen obtained from acids and alkalis ? Give some examples.