Reactions and conditions for A2 AQA chemistry

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  • Created by: Hannamw
  • Created on: 29-05-18 10:38

1. Aspirin CANNOT made be by which two chemicals?

  • Salicylic acid and ethanoic acid
  • Salicylic acid and ethanoic anhydride
  • 2-hydroxybenzoic acid and ethanoyl chloride
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2. Conditions and reactants for acid hydrolysis of an ester?

  • Dilute acid, distilled
  • Strong aid, distilled
  • Dilute acid, reflux
  • Strong acid, reflux

3. Which of these halogenoalkanes will react the slowest?

  • Bromoethane
  • Fluoroethane
  • Chloroethane
  • Iodoethane

4. How do you form an alcohol from alkyl hydrogen sulfates?

  • Add water
  • Add hydrogen
  • Nickel catalyst, hydrogen gas
  • Add oxidising agent e.g. potassium dichromate(VI)

5. A product is insoluble in water and contains water soluble impurities- which of these techniques is most appropriate for extracting the product?

  • Recrystallisation
  • Drying
  • Seperation
  • Distillation
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