(a)[1]
State the source of the large alkane molecules used in cracking.
(b)[2]
State two conditions required for cracking large alkane molecules.
(c(i))[2]
Use molecular formulae to finish the symbol equation for this reaction. C$_{12}$H$_{26}$ → ................. + .................
(c(ii))[1]
Suggest the type of chemical reaction that occurs during cracking.
(d(i))[1]
Suggest the name of the polymer made from propene.
(d(ii))[3]
Draw a section of this polymer molecule showing three repeat units.
(d(iii))[1]
State the type of polymerisation that propene undergoes.