Naming organic compounds
3 marks · EasyThe displayed formula of a hydrocarbon is shown below:
(a)[1 mark]
State the number of carbon atoms in the molecule.
(b)[1 mark]
State the homologous series to which this compound belongs.
(c)[1 mark]
What is the IUPAC name of this compound?
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
Show answer
(a) 3
(b) alkene
(c) propene · must show propene
Show mark scheme and worked solution
Marking points
B1 (a) · 1 mark · Correctly states number of carbon atoms: 3.
B2 (b) · 1 mark · States: alkene.
B3 (c) · 1 mark · Correctly names as propene.
Worked solution
a) The molecule has three carbon atoms.
b) It contains a carbon-carbon double bond, so it belongs to the alkene homologous series.
c) With three carbons and a double bond, the name is propene.