Differentiate between physical and chemical change. Give one example of each. Give one example where both physical and chemical change is taking place.

Name the technique to separate:

(i) butter from curd.

(ii) salt from sea-water.

(iii) camphor from salt.

You are provided with soda water, milk and muddy water. How can you differentiate between them in terms of (i) Homogeneity (ii) Filtration (iii) Tyndall effect?

Show diagrammatically, how will you separate two immiscible liquids?

Draw a labelled diagram to show separation of dyes in black ink using a chromatography method.