Which of the following is a hydrocarbon?
\[C{O_2}\]
\[{H_2}O\]
\[C{H_4}\]
What name is given to the process which separates crude oil into useful components in an oil refinery?
Filtration
Evaporation
Fractional distillation
Which of these oil fractions is the most viscous?
Refinery gas
Residue
Petrol
Which of the following fractions has the lowest boiling point?
Petrol fraction
Gas fraction
Residue fraction
Which process can be used to break long hydrocarbons into smaller, more useful molecules?
Addition
Cracking
Which of the following is the best description of the products of cracking?
Alkanes
Alkenes
A mixture of alkanes and alkenes
Which of the following is not an alkene?
Propane
Butene
Pentene
What is the formula for octane?
\[{C_8}{H_{14}}\]
\[{C_8}{H_{16}}\]
\[{C_8}{H_{18}}\]
Which of the following could be the formula for an alkene?
\[{C_3}{H_{8}}\]
\[{C_4}{H_{8}}\]
\[{C_4}{H_{10}}\]
Which of the following hydrocarbons would rapidly decolourise bromine solution?
Propene
Octane