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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3co011

Which of the following statements about acetals and ketals are correct?

  1. AThey are stable to aqueous
  2. BThey react with to give tertiary alcohols
  3. CThey are formed by acid catalysis with removal of water
  4. DDilute aqueous acid hydrolyses them to the carbonyl compound

Answer: A, C, D

Acetals lack an electrophilic carbonyl carbon, so they are inert to bases and Grignard reagents. Their formation is reversible and acid catalysed, and excess water with acid hydrolyses them.
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