(a)[3]
Explain how petroleum is divided into different hydrocarbon fractions, including how fractional distillation works in an oil refinery.
(b)[2]
State one use for each of the following hydrocarbon fractions: kerosene; naphtha.
(c(i))[1]
Which homologous series includes methane, ethane and propane?
(c(ii))[1]
Give the general formula for the homologous series that includes methane, ethane and propane.
(d(i))[1]
Explain how carbon monoxide is produced in the diesel engine.
(d(ii))[1]
Describe one effect that carbon monoxide has on human health.