Saved Bookmarks
| 1. |
What is polymerisation? Explain the two types of polymerisation reaction of acetylene. |
|
Answer» Solution :A polymer is a large molecule formed by the COMBINATION of large number of small MOLECULES (monomers). This process is known as polymerisation. Acetylene UNDERGOES two TYPES of polymerisation reactions, they are: (Linear polymerisation (1) Cyclic polymerisation (1) Linear polymerisation: Acetylene forms linear polymer, when passed into a solution of cuprous chloride and ammonium chloride. `underset("(Acetylene)")(2CH -=CH)overset(Cu_2Cl_2)underset(NH_4Cl)rarrCH_2=underset("(Vinyl acetylene)")underset(C-=CH)underset(|)"CH"` (ii) Cyclic polymerisation: Acetylene undergoes cyclic polymerisation on passing through red hot iron TUBE. Three molecules of acetylene polymerises to form benzene. 
|
|