
Chirality Quiz
Quiz
•
Chemistry
•
12th Grade
•
Hard
Suman Yadav
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In specific rotation values, a positive rotation indicates:
A. Dextrorotary (clockwise) rotation
B. Levorotary (counterclockwise) rotation
C. Absence of optical activity
D. An unstable solution
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which optical property of enantiomers can be quantified using a polarimeter?
A. Specific rotation.
B. Enantiomeric excess.
C. The absolute configuration of chiral centers.
D. Molecular weight
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relationship between the components of a racemic mixture?
A. They are diastereomers with equal quantities of each enantiomer
B. They are constitutional isomers in a 1:1 ratio
C. They are identical compounds in varying proportions
D. They are a pair of enantiomers mixed in a 1:1 ratio
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In an R-configured chiral center, what is the direction of rotation?
A. Clockwise
B. Counterclockwise
C. Both clockwise and counterclockwise
D. It depends on the number of chirality centers
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do enantiomers and diastereomers differ in terms of their physical properties?
A. Enantiomers have the same boiling points and different optical activities.
B. Diastereomers have different chemical reactivities and identical optical rotations.
C. Enantiomers have identical physical properties except for their effect on plane-polarized light.
D. Diastereomers have the same physical properties, including their effect on plane-polarized light.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements about chirality is incorrect?
A. A chiral molecule has a non-superimposable mirror image.
B. Chirality is always associated with the presence of a stereocenter.
C. A molecule with two stereocenters is always chiral.
D. Chirality can be observed in compounds other than organic molecules.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the context of optical activity, what is one main feature that distinguishes a racemic mixture from a meso compound?
A. A racemic mixture has no optical activity, while a meso compound rotates light.
B. Both racemic mixtures and meso compounds are optically inactive.
C. A meso compound is optically inactive due to internal compensation, a racemic mixture due to external compensation.
D. Both racemic mixtures and meso compounds exhibit optical rotation, but in opposite directions.
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