Question 1

The percent ionic character of a C-Mg bond is less than that of a C-Cu bond.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following mechanisms accounts for the acid-base reaction of ethylmagnesum bromide with acetylene to give acetylide anion?

Accepted Answer

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

Question 3

The reaction of an alkene with dichlorocarbene is stereospecific.

Accepted Answer

A) True 
 B)False

Question 4

What is the major organic product obtained from the following sequence of reactions?

Accepted Answer

A)  (
E)  6,6-dimethyl-1-hexene 
B)  (
E)  5,5-dimethyl-1-heptene 
C)  (
E)  6,6-dimethyl-1-heptene 
D)  (
E)  6,6-dimethyl-2-heptene 
A)  (
E)  6,6-dimethyl-1-hexene 
B)  (
E)  5,5-dimethyl-1-heptene 
C)  (
E)  6,6-dimethyl-1-heptene 
D)  (
E)  6,6-dimethyl-2-heptene

Question 5

What is the major organic product obtained from the following sequence of reactions?

Accepted Answer

The answer of What is the major organic product obtained...

Question 6

What is the major organic product obtained from the following reaction?

Accepted Answer

The answer of What is the major organic product obtained...

Question 7

Name the product of the following reaction.

Accepted Answer

cis-1,2-dimethylcycl

Question 8

What is the major organic product obtained from the following reaction?

Accepted Answer

The answer of What is the major organic product obtained...

Question 9

Consider the following reaction to answer the following question(s).  
-Substance A is formed from the reaction of Mg with ______________.

Accepted Answer

The answer of Consider the following reaction to answer the...

Question 10

What is the major organic product obtained from the following sequence of reactions?

Accepted Answer

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

Question 11

In the formation of the ether soluble complex in a Grignard reaction, magnesium acts as a Lewis base and the ether as a Lewis acid.

Accepted Answer

A) True 
 B)False

Question 12

What is the major organic product obtained from the following sequence of reactions?

Accepted Answer

A)  (Z)-6-methyl-2-heptene 
B)  (
E) -4-methyl-2-pentene 
C)  2-methylheptane 
D)  3-methylheptane 
A)  (Z)-6-methyl-2-heptene 
B)  (
E) -4-methyl-2-pentene 
C)  2-methylheptane 
D)  3-methylheptane

Question 13

Which of the following bonds has the most ionic character?

Accepted Answer

A)  C−Sn 
B)  C−Cu 
C)  C−Zn 
D)  C−Li 
A)  C−Sn 
B)  C−Cu 
C)  C−Zn 
D)  C−Li

Question 14

Diiodomethane and zinc dust activated by a small amount of copper in a diethyl ether solvent produce _____.

Accepted Answer

iodomethyl

Question 15

What is the oxidation state of Li in methyllithium?

Accepted Answer

A)  +2 
B)  +1 
C)  0 
D)  -1 
A)  +2 
B)  +1 
C)  0 
D)  -1

Question 16

Which of the following compounds is the strongest base?

Accepted Answer

A)  NaOH 
B)  NH3 
C)  CH3Li 
D)  CH3OH 
A)  NaOH 
B)  NH3 
C)  CH3Li 
D)  CH3OH

Question 17

Which combination(s) of alkyl bromide and epoxide can be used to prepare the following product by addition of the Grignard reagent derived from the alkyl bromide to the epoxide?

Accepted Answer

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

Question 18

What is the major organic product obtained from the following reaction?

Accepted Answer

A)  (
E)  2-iodo-2-butene 
B)  1-iodo-2-methylpropene 
C)  methylcyclopropane 
D)  (
E)  2-butene 
A)  (
E)  2-iodo-2-butene 
B)  1-iodo-2-methylpropene 
C)  methylcyclopropane 
D)  (
E)  2-butene

Question 19

The product of the following reaction would be a cyclopropane.

Accepted Answer

A) True 
 B)False

Question 20

What is the major organic product obtained from the following sequence of reactions?

Accepted Answer

A)  2-pentanol 
B)  pentane 
C)  1-pentene 
D)  (
E) -2-pentene 
A)  2-pentanol 
B)  pentane 
C)  1-pentene 
D)  (
E) -2-pentene

Exam 15: An Introduction to Organometallic Compounds

The percent ionic character of a C-Mg bond is less than that of a C-Cu bond.

Which of the following mechanisms accounts for the acid-base reaction of ethylmagnesum bromide with acetylene to give acetylide anion?

The reaction of an alkene with dichlorocarbene is stereospecific.

What is the major organic product obtained from the following sequence of reactions?

What is the major organic product obtained from the following sequence of reactions?

What is the major organic product obtained from the following reaction?

Name the product of the following reaction.

What is the major organic product obtained from the following reaction?

Consider the following reaction to answer the following question(s). -Substance A is formed from the reaction of Mg with ______________.

What is the major organic product obtained from the following sequence of reactions?

In the formation of the ether soluble complex in a Grignard reaction, magnesium acts as a Lewis base and the ether as a Lewis acid.

What is the major organic product obtained from the following sequence of reactions?

Which of the following bonds has the most ionic character?

Diiodomethane and zinc dust activated by a small amount of copper in a diethyl ether solvent produce _____.

What is the oxidation state of Li in methyllithium?

Which of the following compounds is the strongest base?

Which combination(s) of alkyl bromide and epoxide can be used to prepare the following product by addition of the Grignard reagent derived from the alkyl bromide to the epoxide?

What is the major organic product obtained from the following reaction?

The product of the following reaction would be a cyclopropane.

What is the major organic product obtained from the following sequence of reactions?

Covalent Bonding and Shapes of Molecules

Alkanes and Cycloalkanes

Stereoisomerism and Chirality

Acids and Bases

Alkenes: Bonding, Nomenclature, and Properties

Reactions of Alkenes

Alkynes

Haloalkanes, Halogenation, and Radical Reactions

Nucleophilic Substitution and Beta-Elimination

Alcohols

Ethers, Epoxides, and Sulfides

Infrared Spectroscopy

Nuclear Magnetic Resonance Spectroscopy

Mass Spectrometry

Aldehydes and Ketones

Carboxylic Acids

Functional Derivatives of Carboxylic Acids

Enolate Anions and Enamines

Dienes, Conjugated Systems, and Pericyclic Reactions

Benzene and the Concept of Aromaticity

Reactions of Benzene and Its Derivatives

Amines

Catalytic Carbon-Carbon Bond Formation

Carbohydrates

Lipids

Amino Acids and Proteins

Nucleic Acids

Organic Polymer Chemistry

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