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Which reagent is used to distinguish between aldehydes and ketones?

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Question: Which reagent is used to distinguish between aldehydes and ketones?

Options:

  1. Benedict\'s solution
  2. Tollens\' reagent
  3. Fehling\'s solution
  4. All of the above

Correct Answer: All of the above

Solution: 

All of the mentioned reagents can be used to distinguish between aldehydes and ketones, as aldehydes reduce these reagents while ketones do not.

Which reagent is used to distinguish between aldehydes and ketones?

Practice Questions

Q1
Which reagent is used to distinguish between aldehydes and ketones?
  1. Benedict's solution
  2. Tollens' reagent
  3. Fehling's solution
  4. All of the above

Questions & Step-by-Step Solutions

Which reagent is used to distinguish between aldehydes and ketones?
Correct Answer: Tollens' reagent
  • Step 1: Understand that aldehydes and ketones are both types of organic compounds.
  • Step 2: Know that aldehydes have a specific functional group (-CHO) at the end of the carbon chain.
  • Step 3: Recognize that ketones have a functional group (C=O) in the middle of the carbon chain.
  • Step 4: Learn that certain reagents can react differently with aldehydes and ketones.
  • Step 5: Identify common reagents used to distinguish between them, such as Tollens' reagent, Fehling's solution, and Benedict's solution.
  • Step 6: Remember that aldehydes can reduce these reagents, causing a visible change (like a color change), while ketones do not.
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