O LevelChemistryCambridge (CIE)Exam Questions11. Organic Chemistry11.6 Alcohols

Alcohols (Cambridge (CIE) O Level Chemistry): Exam Questions

Exam code: 5070

3 hours17 questions

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11.6 Alcohols

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1
1 mark

Which of the following statements about ethanol is not correct?

  • It is formed by a reaction between steam and ethane.

  • It can be used as a fuel.

  • It can be used as a solvent.

  • Its functional group is -OH.

Choose your answer

2
1 mark

Ethanol is used as a solvent and fuel, it is produced by the ….1….. of ….2…. .

Which words would correctly complete the gaps 1 and 2?

 

1

2

A

combustion

ethane

B

combustion

glucose

C

fermentation

glucose

D

fermentation

ethane

    Choose your answer

    1
    1 mark

    Ethanol can be produced from substance Y.

    substance Y + steam rightwards arrow with catalyst on top ethanol

    What is substance Y?

    • Ethane

    • Ethene

    • Carbon dioxide

    • Hydrogen

    Choose your answer

    2
    1 mark

    Which statements about alcohols are correct?

    1

    All alcohols contain the hydroxide ion, OH–.

    2

    Ethanol can be formed from ethene using a reaction catalysed by yeast.

    3

    Methanol can be oxidised to methanoic acid.

    4

    The alcohols X and Y shown are isomers.

    q37-cie-o-level-chemistry-june-2021-paper-1

    • 1 and 2 

    • 1 and 3 

    • 2 and 4 

    • 3 and 4

    Choose your answer

    3
    1 mark

    Ethanol can be manufactured by fermentation or by the catalytic addition of steam to ethene

    Three statements comparing these two processes are shown.

    1. The hydration of ethene uses non-renewable raw materials, whereas fermentation uses renewable raw materials.

    2. Hydration is carried out as a batch process, making it less efficient than fermentation.

    3. Hydration requires high temperatures and pressures, whereas fermentation requires a low and controlled temperature.

    Which statements are correct?

    • 1 and 2

    • 1 and 3

    • 2 and 3

    • 1, 2 and 3

    Choose your answer

    1
    1 mark

    Which of these is an advantage of producing ethanol by fermentation of sugar compared to the catalytic addition of steam to ethene?

    • The process uses high temperatures.

    • The alcohol produced is purer.

    • The process is faster.

    • The process uses renewable raw materials.

    Choose your answer