Chemical Industries - 5

Chemistry Class 10
1. Salts of organic sulphonic acid are called _________.


Chemistry Class 10
2. The general formula of detergent is ___________.


Chemistry Class 10
3. Polyethene is prepared by the ________ of ethene under high pressur.


Chemistry Class 10
4. PVC is prepared by the polymerization of ________ in an autoclave.


Chemistry Class 10
5. Polystyrene is prepared by the polymerization of styrene in the presence of ________.


Chemistry Class 10
6. A drying oil is a liquid which absorbs ________ as it dries up.


Chemistry Class 10
7. Varnish is a ________ solution used to protect and decorate wood surface.


Chemistry Class 10
8. Bakelite is prepared by the polymerization of ________ and formaldehyde.


Chemistry Class 10
9. A pigment gives ________ to the paint.


Chemistry Class 10
10. Plastics are of two types thermoplastics and ________ plastic.


Chemistry Class 10
11. Varnish does not contain plastizer and _________.


Chemistry Class 10
12. NaHCO3 is a baking power alongwith _________.


Chemistry Class 10
13. Formula for caustic soda is ________.


Chemistry Class 10
14. Soda ash is obtained by heating ________.


Chemistry Class 10
15. In the preparation of shaving soap ________ is used to prevent it from drying.


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