Filters
Question type
Study Flashcards

A simple chemical test to distinguish between acetone and 3-pentanone would be the reaction of the compounds with


A) bromine with acetic acid.
B) bromine and aqueous hydroxide ion.
C) THF,LDA at -78 °C followed by reaction with bromine.
D) base and methyl bromide.

Correct Answer

verifed

verified

Which of the following ketones will give a positive iodoform test?


A) 3-Heptanone
B) 2-Pentanone
C) 3-Hexanone
D) Cyclohexanone

Correct Answer

verifed

verified

Vitamin C is a stable enediol.Which is the structure of a possible keto form in equilibrium with the enediol form? Vitamin C is a stable enediol.Which is the structure of a possible keto form in equilibrium with the enediol form? A) I B) II C) III D) IV


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

Correct Answer

verifed

verified

Which is the more stable form of acetophenone? Which is the more stable form of acetophenone? A) Only I B) Only II C) Only III D) I and II are equally stable


A) Only I
B) Only II
C) Only III
D) I and II are equally stable

Correct Answer

verifed

verified

B

If you want to form a thermodynamic enolate,you want to


A) keep the reaction as cold as possible.
B) use an aprotic solvent such as THF.
C) use a protic solvent such as ethanol.
D) use a carboxylic acid.

Correct Answer

verifed

verified

Which is the most stable form of 1,3-cyclohexanedione? Which is the most stable form of 1,3-cyclohexanedione? A) I B) II C) III D) IV


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

Correct Answer

verifed

verified

What is the structure of X,product of the following reaction? What is the structure of X,product of the following reaction? A) I B) II C) III D) IV


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

Correct Answer

verifed

verified

Which is the thermodynamic enolate of 2-methylcyclohexanone? Which is the thermodynamic enolate of 2-methylcyclohexanone? A) I B) II C) III D) IV


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

Correct Answer

verifed

verified

What is the starting material in the following reaction? What is the starting material in the following reaction? A) I B) II C) III D) IV


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

Correct Answer

verifed

verified

What is the product of the following reaction? What is the product of the following reaction? A) I B) II C) III D) IV


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

Correct Answer

verifed

verified

The reaction below is a direct enolate alkylation.It has been found that this reaction only works well with unhindered methyl and 1° alkyl halides.Pick the statement that best explains this observation. The reaction below is a direct enolate alkylation.It has been found that this reaction only works well with unhindered methyl and 1° alkyl halides.Pick the statement that best explains this observation. A) The nucleophilic enolate requires a reaction center that has a positive charge. B) Hindered alkyl halides do not undergo S<sub>N</sub>1 reactions. C) Hindered alkyl halides do not undergo S<sub>N</sub>2 reactions. D) Methyl and 1° alkyl halides can form carbocations that can readily react with the nucleophilic enolate.


A) The nucleophilic enolate requires a reaction center that has a positive charge.
B) Hindered alkyl halides do not undergo SN1 reactions.
C) Hindered alkyl halides do not undergo SN2 reactions.
D) Methyl and 1° alkyl halides can form carbocations that can readily react with the nucleophilic enolate.

Correct Answer

verifed

verified

C

What is the product of the following reaction? What is the product of the following reaction? 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 a possible enol form of 2-butanone? Which of the following is a possible enol form of 2-butanone? A) I B) II C) III D) II and III


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

Correct Answer

verifed

verified

What is the starting material required to accomplish the following transformation? What is the starting material required to accomplish the following transformation? A) I B) II C) III D) IV


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

Correct Answer

verifed

verified

What is (are) the product(s) of the following reaction? What is (are) the product(s) of the following reaction? A) Only I B) Only II C) Only III D) Only I and III


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

Correct Answer

verifed

verified

D

Why is it difficult to stop the halogenation of ketones under basic conditions at the mono-halogenated stage?


A) The ketone undergoes a Bayer-Villigar oxidation.
B) The ketone is reduced.
C) The ketone undergoes an Aldol reaction.
D) The bromine helps to stabilize the second enolate,making the product more acidic than the starting material.

Correct Answer

verifed

verified

Select the appropriate sequence of reactions to accomplish the following synthesis. Select the appropriate sequence of reactions to accomplish the following synthesis. A) [1] Br<sub>2</sub>,CH<sub>3</sub>CO<sub>2</sub>H; [2] Li<sub>2</sub>CO<sub>3</sub>,LiBr,DMF; [3] CH<sub>3</sub>CH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>Br B) [1] Br<sub>2</sub>,CH<sub>3</sub>CO<sub>2</sub>H; [2] Mg,Et<sub>2</sub>O; [3] CH<sub>3</sub>CH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>Br C) [1] LDA; [2] BrCH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>Br; [3] NaOEt D) [1] NaOEt; [2] BrCH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>Br; [3] LDA


A) [1] Br2,CH3CO2H; [2] Li2CO3,LiBr,DMF; [3] CH3CH2CH2CH2Br
B) [1] Br2,CH3CO2H; [2] Mg,Et2O; [3] CH3CH2CH2CH2Br
C) [1] LDA; [2] BrCH2CH2CH2CH2Br; [3] NaOEt
D) [1] NaOEt; [2] BrCH2CH2CH2CH2Br; [3] LDA

Correct Answer

verifed

verified

Will acetone be completely deprotonated by potassium tert-butoxide?


A) Yes
B) No

Correct Answer

verifed

verified

Which of the following is the intermediate for halogenation of ketones under acidic conditions?


A) An enolate
B) An enol
C) A tautomer
D) An epimer

Correct Answer

verifed

verified

Which of the following is the most acidic compound? Which of the following is the most acidic compound? A) I B) II C) III D) IV


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

Correct Answer

verifed

verified

Showing 1 - 20 of 47

Related Exams

Exam 1

Structure and Bonding

77 Questions

Exam 2

Acids and Bases

59 Questions

Exam 3

Introduction to Organic Molecules and Functional Groups

56 Questions

Exam 4

Alkanes

64 Questions

Exam 5

Stereochemistry

76 Questions

Exam 6

Understanding Organic Reactions

53 Questions

Exam 7

Alkyl Halides and Nucleophilic Substitution

73 Questions

Exam 8

Alkyl Halides and Elimination Reactions

52 Questions

Exam 9

Alcohols,ethers,and Related Compounds

60 Questions

Exam 10

Alkenes and Addition Reactions

54 Questions

Exam 11

Alkynes and Synthesis

51 Questions

Exam 12

Oxidation and Reduction

51 Questions

Exam 13

Radical Reactions

51 Questions

Exam 14

Conjugation, resonance, and Dienes

53 Questions

Exam 15

Benzene and Aromatic Compounds

47 Questions

Exam 16

Reactions of Aromatic Compounds

60 Questions

Exam 17

Introduction to Carbonyl Chemistry; Organometallic Reagents; Oxidation and Reduction

59 Questions

Exam 18

Aldehydes and Ketones - Nucleophilic Addition

52 Questions

Exam 19

Carboxylic Acids and the Acidity of the O-H Bond

53 Questions

Exam 20

Carboxylic Acids and Their Derivatives - Nucleophilic Acyl Substitution

50 Questions

Exam 22

Carbonyl Condensation Reactions

51 Questions

Exam 23

Amines

65 Questions

Exam 24

Carbon-Carbon Bond-Forming Reactions in Organic Synthesis

47 Questions

Exam 25

Pericyclic Reactions

62 Questions

Exam 26

Carbohydrates

50 Questions

Exam 27

Amino Acids and Proteins

46 Questions

Exam 28

Synthetic Polymers

45 Questions

Exam 29

Lipids

45 Questions

Exam 30

Molecular Ion Peaks and Fragmentation Patterns

19 Questions

Exam 31

Analyzing Molecular Motion and Infrared Spectroscopy

37 Questions

Exam 32

Organic Spectroscopy Concepts

51 Questions

Show Answer