PVC is obtained by the polymerisation of
1). Propane
2). Vinyl chloride
3). Styrene
4). Acetylene
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1. Atomic number of an atom gives the number of which of the following ?
2. Setting of plaster of Paris involves
3. Which leader of British Labour Party was recently elected the first Muslim Mayor of London?
4. Which of the following compounds is commonly used as an antiseptic in mouthwashes and toothpastes?
5. The most pure form of Carbon among the options is
6. Red data book contains data of which of the following?
8. By which organic compound all the oils arc known ?
9. The most abundant constituent of atmospheric air is :
10. Tear gas used by the police to disperse the mob contains