AS Chemistry Topic 6.3

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  • Created by: TobyHill5
  • Created on: 18-04-18 20:23

1. Why is a reflux condenser used to oxidise a primary alcohol

  • to ensure once it oxidises into an aldehyde, it flows back down into the flask, where it oxidises again into a carboxylic acid
  • to oxidise it to an aldehyde
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2. why are alcohols more reactive than alkanes

  • the C-O and O-H bonds are polar
  • the OH group has a -ve charge
  • they are flammable

3. The mechanism for halogenoalkane + cyanide ion is

  • Elimination
  • Nucleophilic substitution
  • Electrophilic substitution

4. The reaction between halogenoalkane + OH ion is faster in an aqueous solution of an alkali (KOH/NaOH)

  • True
  • False

5. Which is not a condition of preparing bromoalkanes

  • + phosphoric acid
  • + hydrogen bromide, heat + sulfuric acid
  • + phosphorous bromide
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