Alcohols

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1. What is the main product formed when alcohol is distilled?

  • An carboxylic acid that has not fully reacted with [O].
  • An carboxylic acid that has fully reacted with [O].
  • An aldehyde that has not fully reacted with [O].
  • An aldehyde that has fully reacted with [O].
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2. What is the main product formed when alcohol is refluxed?

  • Carboxylic acid.
  • Ketone.
  • Aldehyde.
  • Ester.

3. Butan- 1 - ol is ixidised by an acidified solution of pottasium dichromate(VI) to form a carboxylic acid. State the colour change that you would see.

  • Red to black
  • Orange to green
  • Orange to colourless
  • Pink to colourless

4. State the difference between ketones and carboxylic acids.

  • For ketones the double bonded oxygen is attatched to a central carbon atom. Where as carboxylic acids the double bonded oxygen is attatched to the end.
  • For ketones the double bonded oxygen is attatched to the end. Where as carboxylic acids the double bonded oxygen is attatched to a central carbon atom.

5. Identify two main methods for production of ethanol.

  • Hydrolysis and cracking.
  • Fermentation and hydrolysis.
  • Fermentation and cracking.
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