Multiple Choice
Which of the following molecules is an example of a chiral compound?
5. Chirality
Chirality
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What is the possible explanation for the presence of a harmful enantiomer in a chiral drug mixture?
A
The harmful enantiomer is formed due to the presence of a catalyst that only produces one enantiomer.
B
The synthesis process produces a racemic mixture containing both enantiomers.
C
The harmful enantiomer is selectively synthesized due to its lower energy state.
D
The harmful enantiomer is the only form that can be isolated from the reaction mixture.
Verified step by step guidance1
Understand the concept of chirality: Chirality refers to the geometric property of a molecule having a non-superimposable mirror image. Enantiomers are pairs of chiral molecules that are mirror images of each other.
Recognize the role of catalysts in enantiomer formation: Catalysts can influence the formation of specific enantiomers by lowering the activation energy for one pathway over another, potentially leading to selective synthesis.
Consider the synthesis process: In many cases, the synthesis of chiral drugs results in a racemic mixture, which contains equal amounts of both enantiomers. This is due to the non-selective nature of the synthesis process.
Evaluate the energy states of enantiomers: Enantiomers can have different energy states, which may affect their stability and the likelihood of their formation during a reaction. A lower energy state can lead to preferential formation of one enantiomer.
Analyze isolation and separation techniques: The ability to isolate a specific enantiomer from a mixture depends on the techniques used, such as chiral chromatography, which can separate enantiomers based on their interactions with a chiral stationary phase.
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