(a)[2]
Describe how petroleum (crude oil) is split into fractions such as naphtha and petrol (gasoline).
(b(i))[1]
Compounds like $\text{C}_{11}\text{H}_{24}$ found in the naphtha fraction are cracked to produce hydrogen, alkenes and smaller alkanes. Explain how the molecular formula $\text{C}_{11}\text{H}_{24}$ shows that the compound is an alkane.
(b(ii))[1]
Write an equation for cracking $\text{C}_{11}\text{H}_{24}$ to form ethene and only one alkane.
(c)[3]
Describe how hydrogen is changed into ammonia in the Haber process. Include the conditions used in the Haber process.
(d)[1]
State one additional use for hydrogen.
(e(i))[1]
Ethene reacts with a compound to form ethanol. Name that compound.
(e(ii))[1]
State one condition needed for this reaction.