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Multiple Choice
Which of the following statements best describes chirality in organic molecules?
A
Chirality refers to the ability of a molecule to rotate plane-polarized light.
B
Chirality is the property of a molecule having a non-superimposable mirror image.
C
Chirality is the process by which molecules undergo a change in configuration.
D
Chirality is the presence of a double bond in a molecule.
Verified step by step guidance
1
Begin by understanding the concept of chirality in organic chemistry. Chirality is a geometric property of some molecules and ions. A chiral molecule is one that cannot be superimposed on its mirror image.
Consider the structural aspect of chirality. A molecule is chiral if it has an asymmetric carbon atom, often referred to as a chiral center. This means the carbon atom is bonded to four different groups.
Reflect on the implications of chirality. Chiral molecules can exist in two forms, known as enantiomers, which are mirror images of each other but cannot be superimposed.
Evaluate the options given in the problem. The statement that best describes chirality is the one that mentions the property of a molecule having a non-superimposable mirror image.
Understand that chirality is not related to the ability to rotate plane-polarized light, the presence of a double bond, or a change in configuration. These are different concepts related to optical activity, molecular structure, and stereochemistry.