Question:
Which of the following compounds can show metamerism?
Which of the following compounds can show metamerism?
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Ethers commonly show metamerism because oxygen can connect two different alkyl groups.
Updated On: May 25, 2026
- Propanal
- Propanone
- Methoxyethane
- Ethanol
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The Correct Option is C
Solution and Explanation
Concept:
Metamerism arises due to different alkyl groups attached on either side of a polyvalent functional group.
Common functional groups showing metamerism:
Step 1: Understand structure requirement. For metamerism: \[ R-X-R' \] must be possible where \(R\) and \(R'\) are different alkyl groups.
Step 2: Analyze each compound.
Step 3: Conclusion. \[ \boxed{\text{Methoxyethane}} \]
- Ether \((-O-)\)
- Secondary amine \((-NH-)\)
- Ketone \((-CO-)\)
Step 1: Understand structure requirement. For metamerism: \[ R-X-R' \] must be possible where \(R\) and \(R'\) are different alkyl groups.
Step 2: Analyze each compound.
- Propanal does not possess suitable polyvalent atom.
- Propanone has only one possible arrangement for three carbons.
- Methoxyethane is an ether and can exhibit metamerism.
- Ethanol cannot show metamerism.
Step 3: Conclusion. \[ \boxed{\text{Methoxyethane}} \]
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