Alcohols

• Identifying an aldehyde

  • using Tollen's: positive result is silver mirror
  • using Fehling's: positive result is blue to a orange red precipitate
• Identifying alcohol

  • using acidified potassium dichromate
  • positive result is orange to green
• distillation apparatus

  • anti- bumping granules: to prevent large bubbles
  • closed system: prevent gases escaping
  • bung: to make sure the ketone is only collected
  • water flowing in wrong direction through condenser so produce may not condense