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Chirality quiz

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Terms in this set (15)

  • What is the definition of a chiral molecule?
    A chiral molecule is one that has a carbon atom bonded to four different groups, making it non-superimposable on its mirror image.
  • What does it mean for two objects to be non-superimposable?
    Non-superimposable means that the objects cannot be placed on top of each other so that all parts match exactly, like left and right hands.
  • Give an everyday example of something that is chiral.
    Human hands are chiral because the left and right hands are mirror images but cannot be perfectly overlapped.
  • What is an example of something that is not chiral?
    A sheet of blank computer paper is not chiral because it can be perfectly overlapped with another identical sheet.
  • What is a chiral center in a molecule?
    A chiral center is a carbon atom bonded to four different groups.
  • How can you identify a chiral center in a molecule?
    Look for a carbon atom that is attached to four distinct groups or atoms.
  • What is the mirror image of a chiral molecule called?
    The mirror image of a chiral molecule is called an enantiomer.
  • What is the relationship between enantiomers?
    Enantiomers are molecules that are non-superimposable mirror images of each other and have the same molecular formula and connections.
  • What are stereoisomers?
    Stereoisomers are compounds with the same molecular formula and connections but different spatial arrangements of atoms.
  • What is another term for a chiral center?
    An asymmetric center is another term for a chiral center.
  • What property do chiral molecules have regarding light?
    Chiral molecules are optically active, meaning they can rotate plane-polarized light.
  • How are chiral molecules represented in drawings?
    Chiral molecules are represented using wedge and dash bonds to show three-dimensional orientation.
  • What does a solid wedge bond indicate in a chiral molecule drawing?
    A solid wedge bond indicates that the group is coming out of the plane of the paper toward the viewer.
  • What does a dashed wedge bond indicate in a chiral molecule drawing?
    A dashed wedge bond indicates that the group is going into the plane of the paper away from the viewer.
  • Why is understanding chirality important in chemistry?
    Understanding chirality is important because it affects how molecules interact in chemical reactions and biological systems, especially due to their optical activity.