Identify chiral centers: A chiral center is a carbon atom that is bonded to four different groups
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Analyze structure (a): The carbon atom in structure (a) is bonded to four different groups: Cl, Br, CH₃, and H, making it a chiral center
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Analyze structure (b): The carbon atom in structure (b) is bonded to COOH, OH, CH₃, and H, which are all different, indicating another chiral center
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Analyze structure (c): The carbon atom in structure (c) is bonded to CH₂Cl, OH, CH₃, and H, which are distinct groups, confirming it as a chiral center
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Analyze structure (d): Structure (d) is described as a simple alkane chain with a chiral center. However, for a carbon atom to be a chiral center, it must be bonded to four different groups. If it is part of a simple alkane chain, it is unlikely to be a chiral center unless it is a branching point with different substituents
Answer
Structures (a), (b), and (c) have chiral centers. Structure (d) requires further clarification to determine if it is truly a chiral center.
Key Concept
Chiral centers in organic molecules
Explanation
A chiral center is a carbon atom bonded to four different groups. Structures (a), (b), and (c) each have a carbon atom bonded to four different groups, making them chiral centers. Structure (d) is not clearly a chiral center based on the description provided.
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