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Rank the following substituent groups from highest to lowest priority according to the sequencing rules. CO2CH3 CO2H OH Cl

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Cl > OH > ...

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Instructions: Consider the structure of streptimidone below to answer the following question(s). Instructions: Consider the structure of streptimidone below to answer the following question(s). -Refer to instructions.Does streptimidone have a meso stereoisomer? Explain. -Refer to instructions.Does streptimidone have a meso stereoisomer? Explain.

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No.Meso compounds are compounds that con...

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Instructions: Identify the indicated hydrogens in the following molecules as pro-R or pro-S. Identify: Instructions: Identify the indicated hydrogens in the following molecules as pro-R or pro-S. Identify:

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Which of the following is the definition of a meso compound?


A) A molecule with chirality centers which is chiral
B) A molecule with chirality centers which is not chiral
C) A diastereomer with no chirality centers
D) A chiral compound with more than one chirality center

E) A) and D)
F) A) and C)

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The numbers on the carbon center of the following molecule represent atomic numbers. The numbers on the carbon center of the following molecule represent atomic numbers. The molecule is in A) the R configuration. B) the S configuration. C) The carbon is not a chiral center in this molecule. D) The exact configuration cannot be determined without knowing additional atomic numbers. The molecule is in


A) the R configuration.
B) the S configuration.
C) The carbon is not a chiral center in this molecule.
D) The exact configuration cannot be determined without knowing additional atomic numbers.

E) A) and B)
F) C) and D)

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Instructions: In the molecules below,assign R,S configurations to the chirality center indicated with an arrow. Instructions: In the molecules below,assign R,S configurations to the chirality center indicated with an arrow. -Refer to instructions.The configuration of this carbon atom is _____. -Refer to instructions.The configuration of this carbon atom is _____.

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Which of the following compounds is (are) achiral? Which of the following compounds is (are) achiral? A) only 1 B) only 1 and 2 C) only 2 and 3 D) 1,2 and 3


A) only 1
B) only 1 and 2
C) only 2 and 3
D) 1,2 and 3

E) A) and B)
F) None of the above

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Instructions: Place asterisks at all the chirality centers in each molecule below. Place asterisks: Instructions: Place asterisks at all the chirality centers in each molecule below. Place asterisks:

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Which of the following have the S configuration? Which of the following have the S configuration? A) only 1 B) only 2 C) only 1 and 2 D) 1,2 and 3


A) only 1
B) only 2
C) only 1 and 2
D) 1,2 and 3

E) C) and D)
F) All of the above

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How many stereoisomers of 3-chloro-2-methylbutane exist? How many stereoisomers of 3-chloro-2-methylbutane exist? A) 1 B) 2 C) 3 D) 4


A) 1
B) 2
C) 3
D) 4

E) B) and D)
F) A) and D)

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How many stereoisomers of 2,3-dimethylbutane exist? How many stereoisomers of 2,3-dimethylbutane exist? A) 1 B) 2 C) 3 D) 4


A) 1
B) 2
C) 3
D) 4

E) B) and D)
F) A) and C)

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Which of the following have the R configuration? Which of the following have the R configuration? A) only 1 B) only 2 C) only 1 and 2 D) 1,2 and 3


A) only 1
B) only 2
C) only 1 and 2
D) 1,2 and 3

E) B) and C)
F) All of the above

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Which of the following has a plane of symmetry?


A) boot
B) laboratory beaker
C) hammer
D) both b and c
E) none of these

F) A) and D)
G) None of the above

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