Chemistry rota 2 S3

• What is the functional group present in alcohols?

  -OH
• How is alcohol produced from glucose?

  By fermentation using yeast enzymes
• What is the general formula for alcohols?

  CHOH
• What suffix do the names of alcohols end with?

  -OL
• What distinguishes propan-1-ol from propan-2-ol?

  They are isomers with different structures
• What are the first eight members of the alcohol homologous series?

  1. Methanol
  2. Ethanol
  3. Propanol
  4. Butanol
  5. Pentanol
  6. Hexanol
  7. Heptanol
  8. Octanol
• How do you indicate the position of the -OH group in alcohols with more than three carbons?

  By placing a number in the name
• What is a key property of alcohols as fuels?

  They burn with a cleaner flame
• What are some uses of alcohols?

  Fuels, solvents, and bactericides
• How are plants used to make everyday products?

  • Clothing: cotton for jeans, flax for linen
  • Soaps: tea tree oil, olive oil
  • Cosmetics: henna for hair or skin dye
  • Dyes: indigo for jeans
  • Medicines: aspirin from willow bark
  • Foods: bread from wheat
  • Food colorings: blueberries (blue), beetroot (red)
• What is a feedstock in the context of alcohols?

  Used to make other chemicals
• What is the role of yeast in alcohol production?

  It catalyzes the formation of alcohol
• What is the structural formula for propan-1-ol?


  H3C-CH2-CH2-OH
• What is the structural formula for propan-2-ol?

  H3C-CH(OH)-CH3
• Why are alcohols considered good solvents?

  They dissolve a wide range of substances
• What is the significance of fermentation in alcohol production?

  It converts glucose into ethanol and CO2
• What is the blue dye used for jeans?

  Indigo
• What is aspirin derived from?

  Willow bark
• What is the role of arnica in medicine?

  Soothes bruises