Gobar gas basically contained
1). Carbon dioxide
2). Carbon monoxide
3). Hydrogen sulphide
4). Methane
2. Terylene is a condensation polymer of ethylene glycol and which acid?
3. Chemical name of bleaching powder is
4. Terylene is a condensation polymer of ethylene glycol and which acid?
5. The Chemical formula of Ammonium dichromate is _____.
6. In which of the following states maximum iron ore is found ?
7. Which metal is extracted from sea water?
8. What is the most common salt in sea water ?
10. Which type of radiations are absorbed by the upper layer of the atmosphere?