The polymerisation of which of the following is used in manufacturing of polythene in industry ?
1). Methane
2). Styrene
3). Acetylene
4). Ethylene
Answer This Question with Explaination and Earn! Click Here to Know More!
3. Question 7.22:How is SO2 an air pollutant?
4. Which one of the following is used to restore the colour of old oil paintings?
6. Which method will be employed to test the hardness of water?
7. Which of the following could be used as fuel in propellant or rockets ?
8. Question 6.15:How is ‘cast iron’ different from ‘pig iron”?
10. The coating of a thin layer of zinc on steel or iron objects is known as