(a)[2]
State what the term compound means.
(b(i))[1]
On Fig. 2.1, place an X inside the column to indicate where the hydrocarbon with the highest boiling point is collected.
(b(ii))[1]
Name the fraction shown as B in Fig. 2.1.
(b(iii))[1]
State the name of the fraction whose hydrocarbons have the shortest chain length.
(b(iv))[1]
State one use for the naphtha fraction.