Explain distillation with the help of neat and labelled diagram. Also describe in detail how salt can be separated from seawater.

Classify the following as elements, compounds or mixtures:

1. Honey                     

2. Carbon dioxide

3. Asbestos

4. Saliva

5. Nitre

6. Blood

7. Gun powder

8. Gold

9. Bronze

10. Aluminium

11. Glucose

12. Silicon

Name the technique that you would use to separate the following mixture:

Mercury $+$ water $\to$

Name the technique that you would use to separate the following mixture:

Chloroform (bp $61°\mathrm{C}$) and ethyl alcohol (bp $78, 3°\mathrm{C}$)

Name the technique that you would use to separate the following mixture:

Oil $+$ water $\to$

Show schematically how the following solution separation can be carried out :

• $\mathrm{Nitre}+\mathrm{Charcoal}+\mathrm{Sulphur}$

Show schematically how the following solution separation can be carried out :

• Common salt + ammonium chloride + sulphur.

Identify from the following mixtures that can be separated by using separating funnel.

We all know most of the substances exist as a mixture. Similarly, in this life most of the people you meet are of different kind. Some are good and some are bad. A solvent always extracts its own kind of substance similarly we need to choose good people among the crowd to make life meaningful.

Which kind of friends you will not choose?