Welcome to the Quiz!
This quiz contains 8 questions from a mix of 1 subtopics.
What is the term for isomers that have the same structural formula but different arrangements of atoms in space?
conformational isomers
optical isomers
geometric isomers
structural isomers
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What is a chiral carbon?
a carbon atom with four different groups attached
a carbon atom with two different groups attached
a carbon atom with three different groups attached
a carbon atom with four identical groups attached
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How many optical isomers can a molecule with one chiral centre have?
1
2
4
3
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What is the difference between normal light and plane polarised light?
normal light is optically active, while plane polarised light is not
normal light vibrates in all directions, while plane polarised light vibrates in one direction
plane polarised light is optically active, while normal light is not
normal light vibrates in one direction, while plane polarised light vibrates in all directions
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What is the term for compounds that rotate plane polarised light?
optically inactive
optically active
optically neutral
optically polarised
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How do enantiomers affect plane polarised light?
both enantiomers rotate it anticlockwise by the same angle
one enantiomer rotates it clockwise, while the other does not affect it
both enantiomers rotate it clockwise by the same angle
one enantiomer rotates it clockwise, while the other rotates it anticlockwise by the same angle
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What is a racemic mixture?
a mixture containing equal amounts of all possible enantiomers
an equimolar mixture containing equal amounts of two enantiomers
a mixture containing only one enantiomer
a mixture containing unequal amounts of two enantiomers
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Why do racemic mixtures exhibit no net optical activity?
the opposing rotations of the enantiomers cancel out
the enantiomers do not rotate plane polarised light
the enantiomers rotate plane polarised light in the same direction
the enantiomers are not optically active
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