Question 1

Outline how one might achieve the following transformation, showing reagents and the isolated intermediates in the synthetic scheme.

Accepted Answer

The answer of Outline how one might achieve the following...

Question 2

What is the major organic product obtained from the following reaction? $\mathrm{CH}_{3}-\mathrm{C} \equiv \mathrm{C}-\mathrm{CH}_{3}$$\stackrel{2 \mathrm{~mol} \mathrm{Br}_{2}}{\longrightarrow}$

Accepted Answer

A)  2,3-dibromobutane 
B)  2,2,3,3-tetrabromobutane 
C)  2,3-dibromobutene 
D)  2,2-dibromobutane 
A)  2,3-dibromobutane 
B)  2,2,3,3-tetrabromobutane 
C)  2,3-dibromobutene 
D)  2,2-dibromobutane

Question 3

2-hexyne will produce a single product upon mercury(II)-catalyzed hydration.

Accepted Answer

A) True 
 B)False

Question 4

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

Accepted Answer

A)  butane 
B)  1-butene 
C)  cis-2-butene 
D)  trans-2-butene 
A)  butane 
B)  1-butene 
C)  cis-2-butene 
D)  trans-2-butene

Question 5

What is the IUPAC name of the following compound

Accepted Answer

A)  vinylcyclohexane 
B)  allylcyclohexane 
C)  ethynylcyclohexane 
D)  acetylcyclohexane 
A)  vinylcyclohexane 
B)  allylcyclohexane 
C)  ethynylcyclohexane 
D)  acetylcyclohexane

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

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 8

What is the IUPAC name of the following compound?

Accepted Answer

A)  (R)-4-methyl-2-hexyne 
B)  (S)-4-methyl-2-hexyne 
C)  (R)-3-methyl-4-hexyne 
D)  (S)-3-methyl-4-hexyne 
A)  (R)-4-methyl-2-hexyne 
B)  (S)-4-methyl-2-hexyne 
C)  (R)-3-methyl-4-hexyne 
D)  (S)-3-methyl-4-hexyne

Question 9

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

Accepted Answer

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

Question 10

What is the approximate C−C−C bond angle in propyne?

Accepted Answer

A)  90° 
B)  109° 
C)  120° 
D)  180° 
A)  90° 
B)  109° 
C)  120° 
D)  180°

Question 11

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

Accepted Answer

A)  (
E) -5-phenyl-2-pentene 
B)  6-phenyl-1-hexene 
C)  (Z)-6-phenyl-2-hexene 
D)  (
E) -6-methyl-3-heptene 
A)  (
E) -5-phenyl-2-pentene 
B)  6-phenyl-1-hexene 
C)  (Z)-6-phenyl-2-hexene 
D)  (
E) -6-methyl-3-heptene

Question 12

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 13

Which atomic orbitals overlap to form the carbon-carbon triple bond of an alkyne?

Accepted Answer

A)  2s + 2s; sp + sp; 2p + 2p 
B)  sp + sp; sp + sp; 2p + 2p 
C)  sp + sp; 2p + 2p; 2p + 2p 
D)  sp2 + sp2; sp + sp; 2p + 2p 
A)  2s + 2s; sp + sp; 2p + 2p 
B)  sp + sp; sp + sp; 2p + 2p 
C)  sp + sp; 2p + 2p; 2p + 2p 
D)  sp2 + sp2; sp + sp; 2p + 2p

Question 14

What is the IUPAC name of the following compound?

Accepted Answer

A)  3,4-dimethyl-1-hexen-5-yne 
B)  4-ethynyl-2-vinylbutane 
C)  3-methyl-4-vinyl-1-pentyne 
D)  4-ethynyl-3-methyl-1-pentyne 
A)  3,4-dimethyl-1-hexen-5-yne 
B)  4-ethynyl-2-vinylbutane 
C)  3-methyl-4-vinyl-1-pentyne 
D)  4-ethynyl-3-methyl-1-pentyne

Question 15

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

Accepted Answer

A)  propanal, CH3CH2CHO 
B)  1-propanol, CH3CH2CH2OH 
C)  butanal, CH3CH2CH2CHO 
D)  butanone, CH3COCH2CH3 
A)  propanal, CH3CH2CHO 
B)  1-propanol, CH3CH2CH2OH 
C)  butanal, CH3CH2CH2CHO 
D)  butanone, CH3COCH2CH3

Question 16

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

Accepted Answer

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

Question 17

Addition of H2 to 2-pentyne in the presence of the Lindlar's catalyst will produce ___-2-pentene.

Accepted Answer

Question 18

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

Accepted Answer

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

Question 19

What is the IUPAC name of the following compound? CH3CH2CH2−C≡C−CH(CH3)2

Accepted Answer

A)  1-isopropyl-1-pentyne 
B)  2-methyl-3-heptyne 
C)  6-methyl-4-heptyne 
D)  isopropyl propyl ethyne 
A)  1-isopropyl-1-pentyne 
B)  2-methyl-3-heptyne 
C)  6-methyl-4-heptyne 
D)  isopropyl propyl ethyne

Question 20

Consider an unknown with the molecular formula C4H6. The number of possible alkyne isomers is _____.

Accepted Answer

Exam 7: Alkynes

Outline how one might achieve the following transformation, showing reagents and the isolated intermediates in the synthetic scheme.

What is the major organic product obtained from the following reaction? CH3−C≡C−CH3\mathrm{CH}_{3}-\mathrm{C} \equiv \mathrm{C}-\mathrm{CH}_{3}CH3​−C≡C−CH3​⟶2 molBr2\stackrel{2 \mathrm{~mol} \mathrm{Br}_{2}}{\longrightarrow}⟶2 molBr2​​

2-hexyne will produce a single product upon mercury(II)-catalyzed hydration.

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

What is the IUPAC name of the following compound

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

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

What is the IUPAC name of the following compound?

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

What is the approximate C−C−C bond angle in propyne?

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

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

Which atomic orbitals overlap to form the carbon-carbon triple bond of an alkyne?

What is the IUPAC name of the following compound?

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

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

Addition of H2 to 2-pentyne in the presence of the Lindlar's catalyst will produce ___-2-pentene.

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

What is the IUPAC name of the following compound? CH3CH2CH2−C≡C−CH(CH3)2

Consider an unknown with the molecular formula C4H6. The number of possible alkyne isomers is _____.

Covalent Bonding and Shapes of Molecules

Alkanes and Cycloalkanes

Stereoisomerism and Chirality

Acids and Bases

Alkenes: Bonding, Nomenclature, and Properties

Reactions of Alkenes

Haloalkanes, Halogenation, and Radical Reactions

Nucleophilic Substitution and Beta-Elimination

Alcohols

Ethers, Epoxides, and Sulfides

Infrared Spectroscopy

Nuclear Magnetic Resonance Spectroscopy

Mass Spectrometry

An Introduction to Organometallic Compounds

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

Filters

What is the major organic product obtained from the following reaction? $\mathrm{CH}_{3}-\mathrm{C} \equiv \mathrm{C}-\mathrm{CH}_{3}$ $\stackrel{2 \mathrm{~mol} \mathrm{Br}_{2}}{\longrightarrow}$

Addition of H₂ to 2-pentyne in the presence of the Lindlar's catalyst will produce ___-2-pentene.

What is the IUPAC name of the following compound? CH₃CH₂CH₂−C≡C−CH(CH₃)₂

Consider an unknown with the molecular formula C₄H₆. The number of possible alkyne isomers is _____.