Paper is manufactured by
A). Wood and resin
B). Wood, sodium and bleaching powder
C). Wood, calcium, hydrogen sulphide and resin.
D). Wood and bleaching powder
Wood, calcium, hydrogen sulphide and resin.
Wood, calcium, hydrogen sulphide and resin.
1. Diamond is an allotropic form of:
2. Detergents used for cleaning clothes and utensils contain
3. Negative feedback in amplifiers
4. A light bulb draws 300 mA when the voltage across it is 240 V. The resistance of the light bulb is;
5. Which were dominant in Mesozoic?
6. The material used in solar cells contains
9. The polymerisation of which of the following is used in manufacturing of polythene in industry ?