Chemical Industries - 5


1. Salts of organic sulphonic acid are called _________.


2. The general formula of detergent is ___________.


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


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


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


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


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


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


9. A pigment gives ________ to the paint.


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


11. Varnish does not contain plastizer and _________.


12. NaHCO3 is a baking power alongwith _________.


13. Formula for caustic soda is ________.


14. Soda ash is obtained by heating ________.


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





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