Reduction of Aldehydes and Keytones

A brief quiz on reduction reactions involving aldehydes and keytones! Enjoy!

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1. What does the reduction of an aldehyde form?

  • Keytone
  • Primary alcohol
  • Carboxylic acid
  • Secondary alcohol
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2. What is the exact ion used in the reduction reaction?

  • OH+
  • OH-
  • H-
  • H+

3. What symbol is used to represent the reducing agent in equations?

  • [H]
  • [O]

4. By what mechanism does the reducing agent you chose above reduce aldehydes and keytones?

  • Electrophilic substitution
  • Nucleophilic addition
  • Nucleophilic substitution
  • Electrophilic addition

5. What is the reducing agent used to reduce aldehydes and keytones?

  • Brady's reagent
  • Sodiumtetrahydridoborate(iii) (NaBH4)
  • Tollen's reagent
  • Acidified potassium dichromate


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