Question 1

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 2

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 3

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

Accepted Answer

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

Question 4

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 5

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 6

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

Question 9

What is IUPAC name of the following compound?

Accepted Answer

(R)-4-chlo

Question 10

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

Accepted Answer

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

Question 11

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

Accepted Answer

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

Question 12

What is the best choice of reagent(s) to perform the following transformation?

Accepted Answer

A)  H2/Pt 
B)  H2/Lindlar catalyst 
C)  Na/NH3 
D)  BH3; followed by H2O2, NaOH 
A)  H2/Pt 
B)  H2/Lindlar catalyst 
C)  Na/NH3 
D)  BH3; followed by H2O2, NaOH

Question 13

What is the IUPAC name for the following compound?

Accepted Answer

A)  (R)-3-methyl-1-penten-4-yne 
B)  (S)-3-methyl-1-penten-4-yne 
C)  (R)-4-methyl-4-penten-1-yne 
D)  (S)-4-methyl-4-penten-1-yne 
A)  (R)-3-methyl-1-penten-4-yne 
B)  (S)-3-methyl-1-penten-4-yne 
C)  (R)-4-methyl-4-penten-1-yne 
D)  (S)-4-methyl-4-penten-1-yne

Question 14

Approximately how long is a carbon-carbon triple bond of an alkyne?

Accepted Answer

A)  110 pm 
B)  121 pm 
C)  135 pm 
D)  156 pm 
A)  110 pm 
B)  121 pm 
C)  135 pm 
D)  156 pm

Question 15

Which of the following has the lowest pKa?

Accepted Answer

A)  butane 
B)  1-butene 
C)  1-butyne 
D)  2-butyne 
A)  butane 
B)  1-butene 
C)  1-butyne 
D)  2-butyne

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

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

Accepted Answer

A)  2-hexanone 
B)  hexanal 
C)  2-hexanol 
D)  cis-2-hexene 
A)  2-hexanone 
B)  hexanal 
C)  2-hexanol 
D)  cis-2-hexene

Question 18

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 19

Which of the following is the strongest acid?

Accepted Answer

A)  propane 
B)  cyclopropane 
C)  propene 
D)  propyne 
A)  propane 
B)  cyclopropane 
C)  propene 
D)  propyne

Question 20

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

Exam 7: Alkynes

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

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?

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

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 reaction?

What is the IUPAC name of the following compound

What is 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 best choice of reagent(s) to perform the following transformation?

What is the IUPAC name for the following compound?

Approximately how long is a carbon-carbon triple bond of an alkyne?

Which of the following has the lowest pKa?

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 major organic product obtained from the following reaction?

Which of the following is the strongest acid?

What is the major organic product obtained from the following series 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

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

Filters

Which of the following has the lowest pK_a?