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Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Section

Drawing and naming the alcohols

21 practice questions

Start practising (10 questions)

Practice questions

1–10 of 10 · Normal

  1. Question 1

    2 marks · Normal

    State the number of carbon atoms in the molecules of:

    (a)

    methanol

    [1 mark]
    (b)

    butan-1-ol

    [1 mark]
    Answer and see the solution →

  2. Question 2

    4 marks · Normal

    Name each alcohol below using IUPAC conventions.

    (a)

    An alcohol with the molecular formula C2H6O and the structural formula CH3CH2OH.

    [1 mark]
    (b)

    An alcohol with the molecular formula C3H8O where the -OH group is attached to the second carbon atom.

    [1 mark]
    (c)

    An alcohol with four carbon atoms and the -OH group attached to the first carbon atom.

    [1 mark]
    (d)

    State another acceptable name that could be used for butan-1-ol in an exam.

    [1 mark]
    Answer and see the solution →

  3. Question 3

    3 marks · Normal

    Explain why both 'propanol' and 'propan-2-ol' could be correct names for different alcohol compounds. Use the structure and position of the –OH group in your answer.

    Answer and see the solution →

  4. Question 4

    4 marks · Normal

    Table 1 shows information about some alcohols.

    Table 1. Formulae of some alcohols
    NameMolecular formulaStructural formula
    methanolCH4OCH3OH
    ethanolC2H6OCH3CH2OH
    ?C3H8OCH3CH2CH2OH
    butan-2-olC4H10OCH3CHOHCH2CH3
    (a)

    Name the alcohol in Table 1 with the molecular formula C3H8O and the structural formula CH3CH2CH2OH.

    [1 mark]
    (b)

    How many carbon atoms are present in ethanol?

    [1 mark]
    (c)

    Write the displayed formula for methanol, showing all bonds.

    [2 marks]
    Answer and see the solution →

  5. Question 5

    1 mark · Normal

    Which of the following is the correct IUPAC name for the alcohol with the structural formula CH3CHOHCH2CH3?

    1. A.butan-2-ol
    2. B.butan-1-ol
    3. C.butanol-2
    4. D.butenal
    Answer and check →

  6. Question 6

    2 marks · Normal

    State the molecular formula and the structural formula for ethanol.

    (a)

    Molecular formula

    [1 mark]
    (b)

    Structural formula

    [1 mark]
    Answer and see the solution →

  7. Question 7

    4 marks · Normal

    Answer the following questions about the alcohol with the displayed formula:

    (a)

    State the IUPAC name for this alcohol.

    [1 mark]
    (b)

    Give its molecular formula.

    [1 mark]
    (c)

    Write its structural formula.

    [1 mark]
    (d)

    Explain why this alcohol is the simplest member of its homologous series.

    [1 mark]
    Answer and see the solution →

  8. Question 8

    2 marks · Normal

    State the IUPAC name for the alcohol with the structural formula CH3CH2CH2OH. Explain which features of the name identify it as an alcohol.

    Answer and see the solution →

  9. Question 9

    4 marks · Normal

    This question is about different alcohols up to four carbon atoms.

    (a)

    Draw the displayed formula of ethanol. Show all bonds clearly.

    [2 marks]
    (b)

    State the molecular formula of butan-1-ol.

    [1 mark]
    (c)

    Give the structural formula for methanol.

    [1 mark]
    Answer and see the solution →

  10. Question 10

    3 marks · Normal

    An alcohol contains four carbon atoms in a straight chain with the –OH group attached to the second carbon.

    State the IUPAC name of this alcohol. Show all steps in your answer.

    Answer and see the solution →