O LevelChemistryCambridgeTopic Questions11. Organic Chemistry11.6 Alcohols

Alcohols (Cambridge O Level Chemistry)

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11 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.

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21 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

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11 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.

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11 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

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21 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

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