(a)[2]
Explain how distillation is used to separate water from aqueous copper(II) sulfate.
(b(i))[1]
On Fig. 2.2, place an X inside the column to indicate where the hydrocarbon with the greatest viscosity is collected.
(b(ii))[1]
Name the fraction shown by the label A in Fig. 2.2.
(b(iii))[1]
State the name of the fraction in Fig. 2.2 with the lowest boiling point.
(b(iv))[1]
State one use of the bitumen fraction.