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Multiple Choice
Which of the following statements best describes a chiral molecule?
A
A molecule that has an asymmetric carbon atom and is not superimposable on its mirror image.
B
A molecule that has a plane of symmetry.
C
A molecule that has two identical substituents on a carbon atom.
D
A molecule that is superimposable on its mirror image.
Verified step by step guidance
1
Understand the concept of chirality: A chiral molecule is one that cannot be superimposed on its mirror image, much like how left and right hands are mirror images but not superimposable.
Identify the key feature of a chiral molecule: It typically contains an asymmetric carbon atom, also known as a chiral center, which is a carbon atom bonded to four different substituents.
Evaluate the given options: Analyze each statement to determine if it describes a chiral molecule.
Option analysis: A molecule with a plane of symmetry or two identical substituents on a carbon atom is not chiral, as these features allow for superimposability on the mirror image.
Conclusion: The correct description of a chiral molecule is one that has an asymmetric carbon atom and is not superimposable on its mirror image.