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How many stereogenic centers are present in the following molecule? How many stereogenic centers are present in the following molecule? A) 1 B) 2 C) 4 D) 5


A) 1
B) 2
C) 4
D) 5

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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.

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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

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Which of the following compounds is identical to compound A? Which of the following compounds is identical to compound A? A) I and II B) II and III C) I and III D) II


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

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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

Correct Answer

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Which of the following molecules are chiral? Which of the following molecules are chiral? A) II,III B) I,II C) I,IV D) III,IV


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

Correct Answer

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Which of the following is the correct definition for a pair of enantiomers?


A) A pair of stereoisomers that have a plane of symmetry.
B) A pair of stereoisomers that are not mirror images of each other.
C) A pair of stereoisomers that are not superimposable mirror images of each other.
D) A pair of stereoisomers that are superimposable mirror images of each other.

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How many stereogenic centers are present in menthol? How many stereogenic centers are present in menthol? A) 1 B) 2 C) 3 D) 4


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

Correct Answer

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How many stereogenic centers are present in the following compound? How many stereogenic centers are present in the following compound? A) 1 B) 2 C) 3 D) 4


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

Correct Answer

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Which of the following structures has the R configuration? Which of the following structures has the R configuration? A) Only I B) Only II C) Only I and II D) I,II,and III


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

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

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


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

Correct Answer

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Which of the following statements is true?


A) Enantiomers are mirror images that are not superimposable.
B) A molecule that is superimposable on its mirror image is chiral.
C) A chiral molecule usually contains a plane of symmetry.
D) An achiral molecule does not contain a plane of symmetry.

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

Correct Answer

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A solution containing 0.4 g/mL of a pure S enantiomer is a 1 dm polarimeter rotates plane polarized light by +5.6°.What is the rotation of a solution containing 0.8 g/mL of the S enantiomer in the same polarimeter?


A) +5.6°
B) +11.2°
C) +2.8°
D) +1.4°

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

Correct Answer

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Showing 61 - 76 of 76

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