Question:
Which of the following statement is true for enantiomers?
Which of the following statement is true for enantiomers?
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Enantiomers are always non-superimposable mirror images, and this is a key feature distinguishing them from other stereoisomers like diastereomers.
Updated On: Jun 17, 2025
- Optical isomers that are superimposable mirror images
- Isomers which differ in their configuration around a single carbon atom
- Stereoisomers that are non-superimposable and non-mirror images
- Stereoisomers that are non-superimposable mirror images
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The Correct Option is D
Solution and Explanation
Enantiomers are a type of stereoisomers that are non-superimposable mirror images of each other. These molecules have the same molecular formula and connectivity of atoms but differ in the spatial arrangement of their atoms in such a way that one cannot be superimposed on the other, just like how left and right hands are mirror images but cannot overlap.
- Option (1): Optical isomers are enantiomers or diastereomers, but enantiomers specifically are non-superimposable mirror images, so this option is not correct.
- Option (2): This is a general definition of stereoisomers, but it is not specific to enantiomers. Enantiomers specifically refer to isomers that are mirror images and not superimposable.
- Option (3): This describes diastereomers, which are stereoisomers that are not mirror images of each other, unlike enantiomers, which are specifically mirror images.
Thus, the correct answer is option (4): Enantiomers are stereoisomers that are non-superimposable mirror images.
- Option (1): Optical isomers are enantiomers or diastereomers, but enantiomers specifically are non-superimposable mirror images, so this option is not correct.
- Option (2): This is a general definition of stereoisomers, but it is not specific to enantiomers. Enantiomers specifically refer to isomers that are mirror images and not superimposable.
- Option (3): This describes diastereomers, which are stereoisomers that are not mirror images of each other, unlike enantiomers, which are specifically mirror images.
Thus, the correct answer is option (4): Enantiomers are stereoisomers that are non-superimposable mirror images.
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