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Which of the following is a characteristic reaction of ketones?

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Question: Which of the following is a characteristic reaction of ketones?

Options:

  1. Oxidation to carboxylic acids
  2. Reduction to alcohols
  3. Formation of hemiacetals
  4. Formation of aldehydes

Correct Answer: Formation of hemiacetals

Solution: 

Ketones can react with alcohols to form hemiacetals, which is a characteristic reaction.

Which of the following is a characteristic reaction of ketones?

Practice Questions

Q1
Which of the following is a characteristic reaction of ketones?
  1. Oxidation to carboxylic acids
  2. Reduction to alcohols
  3. Formation of hemiacetals
  4. Formation of aldehydes

Questions & Step-by-Step Solutions

Which of the following is a characteristic reaction of ketones?
Correct Answer: Hemiacetals formation
  • Step 1: Understand what ketones are. Ketones are a type of organic compound that contain a carbonyl group (C=O) bonded to two carbon atoms.
  • Step 2: Learn about alcohols. Alcohols are organic compounds that contain a hydroxyl group (-OH).
  • Step 3: Know what a hemiacetal is. A hemiacetal is a compound formed when an alcohol reacts with a carbonyl compound like a ketone.
  • Step 4: Recognize the reaction. When a ketone reacts with an alcohol, it can form a hemiacetal. This reaction is characteristic of ketones.
  • Step 5: Conclude that this reaction (ketone + alcohol = hemiacetal) is a key feature of ketones.
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