Which among the following is false about natural rubber?
1). It is an elastomer
2). It is a monomer of cis-isoprene
3). Natural rubber is a polymer of chloroprene
4). It is heated with sulphur compounds to improve its properties
Option 2: It is a monomer of cis-isoprene
1. Of the following which one pollutes the air of abig city?
3. The most electronegative element among the following is-
4. How many neutrons are there in 92U238 atom ?
5. Question 7.40:List the uses of Neon and argon gases.
6. The chemical bahaviour of an atom depends upon
7. Vulcanization of rubber is carried out by adding
8. _________ gets converted to phosgene, when exposed to sunlight.
9. Question 9.30:The oxidation number of cobalt in K[Co(CO)4] is(i) 1(ii) 3(iii) −1(iv) −3