Filters
Question type
Study Flashcards

Which of the following Newman projections represents meso-2,3-dibromobutane? Which of the following Newman projections represents meso-2,3-dibromobutane? A) 1 B) 2 C) 3 D) 4


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

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

Correct Answer

verifed

verified

Complete the following Newman projection so that it represents (2R,3S)-2,3-dibromobutane. Complete the following Newman projection so that it represents (2R,3S)-2,3-dibromobutane.

Correct Answer

verifed

verified

Which of the following structures is different from the other three? Which of the following structures is different from the other three? A) 1 B) 2 C) 3 D) 4


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

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

Correct Answer

verifed

verified

Which of the following Newman projections represents (2R,3R) -dibromobutane? Which of the following Newman projections represents (2R,3R) -dibromobutane? A) 1 B) 2 C) 3 D) 4


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

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

Correct Answer

verifed

verified

How much of the R enantiomer is present in 10 g of a mixture which has an enantiomeric excess of 60% of the R isomer?


A) 2 g
B) 4 g
C) 6 g
D) 8 g

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

Correct Answer

verifed

verified

How many stereogenic centers are there in the following molecule (the naturally occurring stereoisomer is the male hormone testosterone) ? How many stereogenic centers are there in the following molecule (the naturally occurring stereoisomer is the male hormone testosterone) ? A) Three B) Four C) Six D) Seven


A) Three
B) Four
C) Six
D) Seven

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

Correct Answer

verifed

verified

How many stereoisomers of 2,3-dimethylbutane, (CH3) 2CHCH(CH3) 2, exist?


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

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

Correct Answer

verifed

verified

Complete the following Fischer diagram so that it represents (2R,3S)-butane-2,3-diol. Complete the following Fischer diagram so that it represents (2R,3S)-butane-2,3-diol.

Correct Answer

verifed

verified

Complete the following zig-zag structure so that it represents (2R,3S)-2,3-butanediol. Complete the following zig-zag structure so that it represents (2R,3S)-2,3-butanediol.

Correct Answer

verifed

verified

Complete the following Fischer diagram so that it represents (2R,3S)-3-bromobutan-2-ol. Complete the following Fischer diagram so that it represents (2R,3S)-3-bromobutan-2-ol.

Correct Answer

verifed

verified

Which of the following structures is different from the other three? Which of the following structures is different from the other three? A) 1 B) 2 C) 3 D) 4


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

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

Correct Answer

verifed

verified

Which of the following structures represent the same stereoisomer? Which of the following structures represent the same stereoisomer? A) only 1 and 2 B) only 1 and 3 C) only 2 and 3 D) 1, 2 and 3


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

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

Correct Answer

verifed

verified

Which of the following is the best definition of a pair of atropisomers?


A) A pair of enantiomers which do not interconvert.
B) A pair of enantiomers which lack chiral centers.
C) A pair of enantiomeric structures which lack chiral centers and interconvert by rotation around carbon-carbon single bonds.
D) A pair of enantiomers which lack chiral centers and do not interconvert because of hindered rotation around carbon-carbon single bonds.

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

Correct Answer

verifed

verified

How many stereoisomers of 4-bromo-2-pentanol, CH3CH(OH) CH2CHBrCH3, exist?


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

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

Correct Answer

verifed

verified

Complete the following Newman projection so that it represents (2R,3R)-2,3-dibromobutane. Complete the following Newman projection so that it represents (2R,3R)-2,3-dibromobutane.

Correct Answer

verifed

verified

How many stereoisomers of 4-chloro-2-methylpentane (CH3) 2CHCH2CHClCH3, exist?


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

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

Correct Answer

verifed

verified

What is the configuration of the two chiral centers in the following molecule? What is the configuration of the two chiral centers in the following molecule? A) 3R,5R B) 3R,5S C) 3S,5R D) 3S,5S


A) 3R,5R
B) 3R,5S
C) 3S,5R
D) 3S,5S

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

Correct Answer

verifed

verified

Complete the following Fischer diagram so that it represents (2R,3R)-3-bromobutan-2-ol. Complete the following Fischer diagram so that it represents (2R,3R)-3-bromobutan-2-ol.

Correct Answer

verifed

verified

Which of the following is the definition of chirality?


A) The non-superposability of an object on its mirror image
B) The superposability of an object on its mirror image
C) A molecule that has a carbon atom with four different substituents
D) A molecule with a mirror image

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

Correct Answer

verifed

verified

What is the relationship between the following pair of structures? What is the relationship between the following pair of structures? A) They are enantiomers B) They are diastereomers C) The are constitutional isomers D) They are identical


A) They are enantiomers
B) They are diastereomers
C) The are constitutional isomers
D) They are identical

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

Correct Answer

verifed

verified

Showing 21 - 40 of 75

Related Exams

Exam 1

Covalent Bonding and Shapes of Molecules

95 Questions

Exam 2

Alkanes and Cycloalkanes

77 Questions

Exam 4

Acids and Bases

75 Questions

Exam 5

Alkenes: Bonding, Nomenclature, and Properties

70 Questions

Exam 6

Reactions of Alkenes

79 Questions

Exam 7

Alkynes

80 Questions

Exam 8

Haloalkanes, Halogenation, and Radical Reactions

58 Questions

Exam 9

Nucleophilic Substitution and Beta-Elimination

89 Questions

Exam 10

Alcohols

78 Questions

Exam 11

Ethers, Epoxides, and Sulfides

71 Questions

Exam 12

Infrared Spectroscopy

44 Questions

Exam 13

Nuclear Magnetic Resonance Spectroscopy

73 Questions

Exam 14

Mass Spectrometry

39 Questions

Exam 15

An Introduction to Organometallic Compounds

45 Questions

Exam 16

Aldehydes and Ketones

94 Questions

Exam 17

Carboxylic Acids

51 Questions

Exam 18

Functional Derivatives of Carboxylic Acids

88 Questions

Exam 19

Enolate Anions and Enamines

70 Questions

Exam 20

Dienes, Conjugated Systems, and Pericyclic Reactions

44 Questions

Exam 21

Benzene and the Concept of Aromaticity

59 Questions

Exam 22

Reactions of Benzene and Its Derivatives

83 Questions

Show Answer