(a)[2]
Describe a test for an unsaturated hydrocarbon.
(b)[2]
Describe the arrangement and motion of the particles in isoprene at $25^\circ\text{C}$.
(c)[3]
Calculate the greatest mass of methylsulfolene that can be made from 100 g of isoprene.
(d(i))[1]
Which feature of the isoprene molecule allows it to form an addition polymer?
(d(ii))[2]
Deduce the formula of the monomer used to make Perspex.