Naming organic compounds
4 marks · NormalThe formula for an organic compound is CH3CH2CH2OH.
i) State the functional group present.
ii) Name the homologous series to which this compound belongs.
iii) Give the IUPAC name of the 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.
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(a) hydroxyl group
(b) alcohol
(c) propanol
Common mistakes: propanal (aldehyde); propene or propane
Show mark scheme and worked solution
Marking points
B1 (a) · 1 mark · States hydroxyl group as the functional group.
B2 (b) · 1 mark · Names alcohol as the homologous series.
M1 (c) · 1 mark · Identifies the compound as an alcohol with 3 carbon atoms.
A1 (c) · 1 mark · Gives the IUPAC name: propanol (accept 1-propanol if the position is specified).
Worked solution
(a) The functional group present is a hydroxyl group (–OH).
(b) The homologous series is alcohols.
(c) The compound with 3 carbons and an –OH group is called propanol (accept 1-propanol).