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What is the main difference between aldehydes and ketones?

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Question: What is the main difference between aldehydes and ketones?

Options:

  1. Position of the carbonyl group
  2. Number of carbon atoms
  3. Presence of hydrogen
  4. All of the above

Correct Answer: Position of the carbonyl group

Solution: 

The main difference is the position of the carbonyl group; aldehydes have it at the end of the carbon chain, while ketones have it within the chain.

What is the main difference between aldehydes and ketones?

Practice Questions

Q1
What is the main difference between aldehydes and ketones?
  1. Position of the carbonyl group
  2. Number of carbon atoms
  3. Presence of hydrogen
  4. All of the above

Questions & Step-by-Step Solutions

What is the main difference between aldehydes and ketones?
Correct Answer: Position of carbonyl group
  • Step 1: Understand what a carbonyl group is. It is a carbon atom double-bonded to an oxygen atom (C=O).
  • Step 2: Identify where the carbonyl group is located in aldehydes. In aldehydes, the carbonyl group is at the end of the carbon chain.
  • Step 3: Identify where the carbonyl group is located in ketones. In ketones, the carbonyl group is located within the carbon chain, not at the ends.
  • Step 4: Conclude that the main difference between aldehydes and ketones is the position of the carbonyl group.
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