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Which of the following compounds does not have a plane of symmetry? Which of the following compounds does not have a plane of symmetry? A) Only I and II B) Only II C) Only III and IV D) Only I,II,and IV


A) Only I and II
B) Only II
C) Only III and IV
D) Only I,II,and IV

E) None of the above
F) All of the above

Correct Answer

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Which of the following statements about stereoisomers is not true?


A) Stereoisomers have identical IUPAC names except for a prefix like cis or trans.
B) Stereoisomers differ in configuration.
C) Stereoisomers always have the same functional groups.
D) Stereoisomers differ only in their structural formula.

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

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What is the relationship between the following compounds? What is the relationship between the following compounds? A) Constitutional isomers B) Diastereomers C) Enantiomers D) Identical


A) Constitutional isomers
B) Diastereomers
C) Enantiomers
D) Identical

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

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Which of the following molecules has a plane of symmetry? Which of the following molecules has a plane of symmetry? A) I B) II C) III D) IV


A) I
B) II
C) III
D) IV

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

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Give the IUPAC name for the following compound: Give the IUPAC name for the following compound: A) R-3-methylhexane B) S-3-methylhexane C) R-4-methylhexane D) S-4-methylhexane


A) R-3-methylhexane
B) S-3-methylhexane
C) R-4-methylhexane
D) S-4-methylhexane

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

Correct Answer

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Which of the following structures has a different configuration from the other three? Which of the following structures has a different configuration from the other three? A) I B) II C) III D) IV


A) I
B) II
C) III
D) IV

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

Correct Answer

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What is the relationship between the following two compounds? What is the relationship between the following two compounds? A) Constitutional isomers B) Identical C) Stereoisomers D) Not isomers,different compounds


A) Constitutional isomers
B) Identical
C) Stereoisomers
D) Not isomers,different compounds

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

Correct Answer

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Which of the following cyclic molecules is a meso compound? Which of the following cyclic molecules is a meso compound? A) I B) II C) III D) IV


A) I
B) II
C) III
D) IV

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

Correct Answer

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Which of the following is the definition of chirality?


A) The existence of a molecule with a mirror image.
B) The existence of a molecule with a carbon atom that has four different substituents.
C) The existence of a molecule that is superimposable on its mirror image.
D) The existence of a molecule that is not superimposable on its mirror image.

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

Correct Answer

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What is the relationship between the following compounds? What is the relationship between the following compounds? A) Constitutional isomers B) Diastereomers C) Enantiomers D) Identical


A) Constitutional isomers
B) Diastereomers
C) Enantiomers
D) Identical

E) None of the above
F) All of the above

Correct Answer

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Which of the following statements is not true?


A) A molecule that is superimposable on its mirror image is said to achiral.
B) A molecule that is not superimposable on its mirror image is said to be chiral.
C) A molecule that is superimposable on its mirror image is said to be chiral.
D) A carbon atom bonded to four different groups is a stereogenic center.

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

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Rank the following groups in order of decreasing priority according to the Cahn-Ingold-Prelog system. Rank the following groups in order of decreasing priority according to the Cahn-Ingold-Prelog system. A) III > I > II > IV B) I > II > IV > III C) III > II > IV > I D) III > IV > II > I


A) III > I > II > IV
B) I > II > IV > III
C) III > II > IV > I
D) III > IV > II > I

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

Correct Answer

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Which of the following statements about constitutional isomers is not true?


A) They have different IUPAC names.
B) They always have the same functional groups.
C) They have different physical properties.
D) They have different chemical properties.

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

Correct Answer

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Which of the following compounds are meso? Which of the following compounds are meso? A) Only I B) Only II C) I and II D) Neither


A) Only I
B) Only II
C) I and II
D) Neither

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

Correct Answer

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Rank the following groups in order of decreasing priority according to the Cahn-Ingold-Prelog system. Rank the following groups in order of decreasing priority according to the Cahn-Ingold-Prelog system. A) I > III > IV > II B) III > IV > I > II C) IV > III > I > II D) IV > I > III > II


A) I > III > IV > II
B) III > IV > I > II
C) IV > III > I > II
D) IV > I > III > II

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

Correct Answer

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Which of the following structures has a different configuration from the other three? Which of the following structures has a different configuration from the other three? A) I B) II C) III D) IV


A) I
B) II
C) III
D) IV

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

Correct Answer

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