Filters
Question type
Study Flashcards

Which of the following statements is true?


A) The presence of a plane of symmetry makes a molecule chiral.
B) An achiral molecule must have one or more stereogenic centers.
C) All molecules that have stereogenic centers are chiral.
D) Stereoisomers that are not superimposable on their mirror image are enantiomers.

Correct Answer

verifed

verified

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

verifed

verified

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

verifed

verified

What is the main carbohydrate in the seeds and roots of plants?


A) Starch
B) Glucose
C) Cellulose
D) Glycogen

Correct Answer

verifed

verified

How many stereoisomers of 1,3-dibromocyclopentane exist?


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

Correct Answer

verifed

verified

Which of the following statements about meso compounds is not true?


A) A meso compound generally has a plane of symmetry.
B) A meso compound and its mirror image are identical.
C) A meso compound is achiral.
D) A meso compound is chiral.

Correct Answer

verifed

verified

A natural product was isolated in the laboratory, and its observed rotation was +10° when measured in a 1 dm sample tube containing 1.0 g of compound in 10 mL of H2O.What is the specific rotation of this compound?


A) -10°
B) +100°
C) +10°
D) -100°

Correct Answer

verifed

verified

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

verifed

verified

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

Correct Answer

verifed

verified

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

verifed

verified

Which of the following compounds can have a meso stereoisomer? Which of the following compounds can have a meso stereoisomer? A) I B) II C) III D) IV


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

Correct Answer

verifed

verified

Which of the following is the definition for a pair of diastereomers?


A) A pair of stereoisomers with stereogenic centers but is not chiral.
B) A pair of stereoisomers that are superimposable 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 not mirror images of each other.

Correct Answer

verifed

verified

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

Correct Answer

verifed

verified

How many stereoisomers can be drawn for a molecule with formula CH3CH(OH) CH(OH) CH3?


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

Correct Answer

verifed

verified

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

verifed

verified

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

verifed

verified

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.

Correct Answer

verifed

verified

How many stereogenic centers are present in fructose, a simple sugar? How many stereogenic centers are present in fructose, a simple sugar? A) 1 B) 2 C) 3 D) 4


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

Correct Answer

verifed

verified

How much of the R enantiomer is present in 10 g of a mixture that has an enantiomeric excess of 30% of the S isomer?


A) 3.0 g
B) 3.5 g
C) 6.5 g
D) 7.0 g

Correct Answer

verifed

verified

Showing 41 - 59 of 59

Related Exams

Exam 1

Structure and Bonding

69 Questions

Exam 2

Acids and Bases

52 Questions

Exam 3

Introduction to Organic Molecules and Functional Groups

45 Questions

Exam 4

Alkanes

57 Questions

Exam 6

Understanding Organic Reactions

45 Questions

Exam 7

Alkyl Halides and Nucleophilic Substitution

61 Questions

Exam 8

Alkyl Halides and Elimination Reactions

43 Questions

Exam 9

Alcohols, Ethers, and Related Compounds

49 Questions

Exam 10

Alkenes

43 Questions

Exam 11

Alkynes

42 Questions

Exam 12

Oxidation and Reduction

39 Questions

Exam 13

Mass Spectrometry and Infrared Spectroscopy

35 Questions

Exam 14

Nuclear Magnetic Resonance Spectroscopy

29 Questions

Exam 15

Radical Reactions

42 Questions

Exam 16

Conjugation, Resonance, and Dienes

43 Questions

Exam 17

Benzene and Aromatic Compounds

31 Questions

Exam 18

Reactions of Aromatic Compounds

54 Questions

Exam 19

Carboxylic Acids and the Acidity of the O-H Bond

36 Questions

Exam 20

Introduction to Carbonyl Chemistry;

29 Questions

Exam 21

Aldehydes and Ketones Nucleophilic Addition

42 Questions

Exam 22

Carboxylic Acids and Derivatives

46 Questions

Exam 23

Substitution Reactions of Carbonyl Compounds at the Alpha-Carbon

40 Questions

Exam 24

Carbonyl Condensation Reactions

45 Questions

Exam 25

Amines

53 Questions

Exam 26

Carbon-Carbon Bond Forming Reactions in Organic Synthesis

37 Questions

Exam 27

Pericyclic Reactions

47 Questions

Exam 28

Carbohydrates

38 Questions

Exam 29

Amino Acids and Proteins

35 Questions

Exam 30

Synthetic Polymers

36 Questions

Exam 31

Lipids

39 Questions

Show Answer