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(e) Alcohols

Syllabus
2024
Topic
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Level
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4.29C Alcohol functional group

Know that alcohols contain the functional group -OH

4.30C Alcohol structures and names

Understand how to draw structural and displayed formulae for methanol, ethanol, propanol (propan-1-ol only) and butanol (butan-1-ol only), and name each compound the names propanol and butanol are acceptable

4.31C Oxidation of ethanol

Know that ethanol can be oxidised by:

  • burning in air or oxygen (complete combustion)
  • reaction with oxygen in the air to form ethanoic acid (microbial oxidation)
  • heating with potassium dichromate(VI) in dilute sulfuric acid to form ethanoic acid

4.32C Manufacture of ethanol

Know that ethanol can be manufactured by:

  • reacting ethene with steam in the presence of a phosphoric acid catalyst at a temperature of about 300 ºC and a pressure of about 60-70 atm
  • the fermentation of glucose, in the absence of air, at an optimum temperature of about 30 ºC and using the enzymes in yeast

4.33C Fermentation conditions

Understand the reasons for fermentation, in the absence of air, and at an optimum temperature

Objective notes

5 learning objectives
429C Alcohol functional groupKnow that alcohols contain the functional group -OHView430C Alcohol structures and namesUnderstand how to draw structural and displayed formulae for methanol, ethanol, propanol (propan-1-ol only) and butanol (butan-1-ol only), and name each compound the names propanol and butanol are acceptableView431C Oxidation of ethanolKnow that ethanol can be oxidised by:• burning in air or oxygen (complete combustion)• reaction with oxygen in the air to form ethanoic acid (microbial oxidation)• heating with potassium dichromate(VI) in dilute sulfuric acid to form ethanoic acidView432C Manufacture of ethanolKnow that ethanol can be manufactured by:• reacting ethene with steam in the presence of a phosphoric acid catalyst at a temperature of about 300 ºC and a pressure of about 60-70 atm• the fermentation of glucose, in the absence of air, at an optimum temperature of about 30 ºC and using the enzymes in yeastView433C Fermentation conditionsUnderstand the reasons for fermentation, in the absence of air, and at an optimum temperatureView
ConceptIGCSE Chemistry