FEHLINGS REAGENT

• WHAT IS FEHLING'S REAGENT?

  gentle oxidising agent
• WHAT IONS DOES FEHLING'S REAGENT CONTAIN?

  blue copper (II) complex ions
• WHAT DO BLUE COPPER (II) COMPLEX IONS DO?

  oxidise aldehydes but not ketones
• REDUCTION OF COPPER (II) IONS?

  Cu (2+) + e- -> Cu+
• WHAT IS PRODUCED IN A POSITIVE FEHLING'S TEST?

  brick red precipitate gradually formed
• REACTION WITH ALDEHYDES?

  blue solution gradually changes to brick red precipitate
• REACTION WITH KETONES?

  no reaction