Alcohols

• What should you be able to describe by the end of the video on alcohols?

  The main uses of alcohols, the structures of the first four alcohols, and how ethanol is produced
• What is the significance of ethanol in the context of alcohols?

  Ethanol is found in alcoholic drinks and is one of the most important alcohols
• How many carbon atoms does methanol have?

  One carbon atom
• What is a homologous series in the context of alcohols?

  A homologous series is a group of compounds that have the same functional group
• What is the structural formula of methanol?

  It is represented as CH₃OH
• What are the names and structures of the first four alcohols?

  1. Methanol (1 carbon)
  2. Ethanol (2 carbons)
  3. Propanol (3 carbons)
  4. Butanol (4 carbons)
• How is the name of each alcohol related to the name of the corresponding alkane?

  The name of each alcohol is based on the name of the alkane with the same number of carbon atoms
• What is the first method of producing ethanol mentioned in the video?

  The hydration of ethene
• What is an advantage of making ethanol by hydrating ethene?

  The reaction produces a high yield of ethanol
• What is a disadvantage of producing ethanol by hydrating ethene?

  It requires a high temperature, which consumes a lot of energy
• What is the second method of producing ethanol mentioned in the video?

  Fermentation
• What is the role of yeast in the fermentation process?


  Yeast converts the sugar solution into ethanol and carbon dioxide
• What are the two important conditions for fermentation?

  The temperature should be around 30° C and the reaction must occur in anaerobic conditions
• What is one advantage of producing ethanol by fermentation?

  The low temperature means that the reaction does not require a lot of energy
• Why is the sugar used in fermentation considered renewable?

  Because it comes from plants
• What is a disadvantage of producing ethanol by fermentation?

  The product is an aqueous solution of ethanol, which needs to be purified by distillation
• What is required to purify ethanol after fermentation?

  Distillation
• What is a consequence of distillation in terms of energy?

  Distillation requires energy
• What resources can students use to practice questions on alcohols?

  • Vision workbook available through a link in the video