Question 1

Which of the following alcohols can be prepared from a Grignard reagent and ethylene oxide?

Accepted Answer

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

Question 2

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

Accepted Answer

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

Question 3

Which of the following compounds is the strongest base?

Accepted Answer

A)  CH3CH2MgBr 
B)  CH3CH2OH 
C)  CH3CH2OMgBr 
D)  CH3CH3 
A)  CH3CH2MgBr 
B)  CH3CH2OH 
C)  CH3CH2OMgBr 
D)  CH3CH3 A

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

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 6

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 7

Which of the following is not true regarding the carbon atom of the methylene carbene, H2C: ?

Accepted Answer

A)  it is sp2 hybridized 
B)  it has a complete octet of valence electrons 
C)  it has a vacant 2p atomic orbital 
D)  it has a lone pair of electrons in an sp2 molecular orbital 
A)  it is sp2 hybridized 
B)  it has a complete octet of valence electrons 
C)  it has a vacant 2p atomic orbital 
D)  it has a lone pair of electrons in an sp2 molecular orbital

Question 8

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

Accepted Answer

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

Question 9

What is he change in oxidation state of the metal when magnesium reacts with an alkyl bromide to give an alkylmagnesium bromide (Grignard reagent)?

Accepted Answer

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

Question 10

Which of the following is the best choice of solvent for the formation of phenylmagnesium bromide by the reaction of bromobenzene with magnesium?

Accepted Answer

A)  water 
B)  methanol 
C)  diethyl ether 
D)  acetic acid 
A)  water 
B)  methanol 
C)  diethyl ether 
D)  acetic acid

Question 11

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

Accepted Answer

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

Question 12

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

Accepted Answer

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

Question 13

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 14

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

Accepted Answer

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

Question 15

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 16

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 17

Which of the following is the best choice of solvent for the formation of phenyllithium by the reaction of bromobenzene with lithium?

Accepted Answer

A)  water 
B)  ethanol 
C)  tetrahydrofuran 
D)  acetic acid 
A)  water 
B)  ethanol 
C)  tetrahydrofuran 
D)  acetic acid

Question 18

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 19

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

Accepted Answer

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

Question 20

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

Exam 15: An Introduction to Organometallic Compounds

Which of the following alcohols can be prepared from a Grignard reagent and ethylene oxide?

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

Which of the following compounds is the strongest base?

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

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 sequence of reactions?

Which of the following is not true regarding the carbon atom of the methylene carbene, H2C: ?

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

What is he change in oxidation state of the metal when magnesium reacts with an alkyl bromide to give an alkylmagnesium bromide (Grignard reagent)?

Which of the following is the best choice of solvent for the formation of phenylmagnesium bromide by the reaction of bromobenzene with magnesium?

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

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

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?

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

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

Which of the following is the best choice of solvent for the formation of phenyllithium by the reaction of bromobenzene with lithium?

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

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

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

Filters

Which of the following is not true regarding the carbon atom of the methylene carbene, H₂C: ?