Which of the following is used as raw material for the manufacture of rayon?
1). Coal
2). Petroleum
3). Cellulose
4). Plastic?
1. Potassium Permanganate is used for purifying drinking water, because________
3. Diamonds are glittering and attractive because light Incident on them undergoes
4. Question 5.16:What are emulsions? What are their different types? Give example of each type.
5. Rutherford’s scattering experiment proved the presence of
7. The common name of lead (II) sulphide is
8. Question 16.3:Why do we require artificial sweetening agents?