Question 1

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

Accepted Answer

A)  3,4-dibromohexane 
B)  3,3-dibromohexane 
C)  (
E)  3,4-dibromohexene 
D)  3,3,4,4-tetrabromohexane 
A)  3,4-dibromohexane 
B)  3,3-dibromohexane 
C)  (
E)  3,4-dibromohexene 
D)  3,3,4,4-tetrabromohexane

Question 2

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

Accepted Answer

A)  (Z)-2-heptene 
B)  (Z)-1,5-heptene 
C)  1-heptene 
D)  heptane 
A)  (Z)-2-heptene 
B)  (Z)-1,5-heptene 
C)  1-heptene 
D)  heptane

Question 3

What is IUPAC name of the following compound?

Accepted Answer

(S)-2-chlo

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

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

Accepted Answer

A)  (
E)  1,2-dibromobutene 
B)  (Z) 1,2-dibromobutene 
C)  (
E)  2,3-dibromobutene 
D)  (Z) 2,3-dibromobutene 
A)  (
E)  1,2-dibromobutene 
B)  (Z) 1,2-dibromobutene 
C)  (
E)  2,3-dibromobutene 
D)  (Z) 2,3-dibromobutene

Question 6

Which sequence of reactions can be used to convert 1-pentene to 1-pentyne

Accepted Answer

A)  Treatment with HBr; followed by treatment with NaOH 
B)  Treatment with Br2; followed by treatment with NaNH2 
C)  Treatment with Br2; followed by treatment with H2SO4 
D)  Treatment with Br2, H2O; followed by treatment with NaOH 
A)  Treatment with HBr; followed by treatment with NaOH 
B)  Treatment with Br2; followed by treatment with NaNH2 
C)  Treatment with Br2; followed by treatment with H2SO4 
D)  Treatment with Br2, H2O; followed by treatment with NaOH

Question 7

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

Accepted Answer

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

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

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 10

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 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

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

Accepted Answer

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

Question 14

Which sequence of reactions can be used to convert (Z) 2-pentene to 2-pentyne

Accepted Answer

A)  Treatment with Br2; followed by treatment with NaNH2 
B)  Treatment with Br2, H2O; followed by treatment with NaOH 
C)  Treatment with Br2; followed by treatment with H2SO4 
D)  Treatment with HBr; followed by treatment with NaOH 
A)  Treatment with Br2; followed by treatment with NaNH2 
B)  Treatment with Br2, H2O; followed by treatment with NaOH 
C)  Treatment with Br2; followed by treatment with H2SO4 
D)  Treatment with HBr; followed by treatment with NaOH

Question 15

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

Accepted Answer

A)  H2O; H2SO4 
B)  1. 3 moles of NaNH2; 2. H3O+ 
C)  KMnO4, NaOH, H2O 
D)  Zn 
A)  H2O; H2SO4 
B)  1. 3 moles of NaNH2; 2. H3O+ 
C)  KMnO4, NaOH, H2O 
D)  Zn

Question 16

How many alkynes are there with the molecular formula C6H10?

Accepted Answer

A)  4 
B)  5 
C)  6 
D)  7 
A)  4 
B)  5 
C)  6 
D)  7

Question 17

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

Accepted Answer

A)  90$\degree$ 
B)  109$\degree$ 
C)  120$\degree$ 
D)  180$\degree$ 
A)  90$\degree$ 
B)  109$\degree$ 
C)  120$\degree$ 
D)  180$\degree$

Question 18

What is the IUPAC name of the following compound? (CH3)2CHCH2-CºC-CH(CH3)2

Accepted Answer

A)  2,6-dimethyl-3-heptyne 
B)  2,6-dimethyl-4-heptyne 
C)  1,1,5,5-tetramethyl-2-pentyne 
D)  4-nonyne 
A)  2,6-dimethyl-3-heptyne 
B)  2,6-dimethyl-4-heptyne 
C)  1,1,5,5-tetramethyl-2-pentyne 
D)  4-nonyne

Question 19

What is the correct assignment of the acid, base, conjugate acid and conjugate base in the following equilibrium?

Accepted Answer

A)  1 = acid; 2 = base; 3 = conjugate acid; 4 = conjugate base 
B)  1 = acid; 2 = base; 3 = conjugate base; 4 = conjugate acid 
C)  1 = base; 2 = acid; 3 = conjugate acid; 4 = conjugate base 
D)  1 = base; 2 = acid; 3 = conjugate base; 4 = conjugate acid 
A)  1 = acid; 2 = base; 3 = conjugate acid; 4 = conjugate base 
B)  1 = acid; 2 = base; 3 = conjugate base; 4 = conjugate acid 
C)  1 = base; 2 = acid; 3 = conjugate acid; 4 = conjugate base 
D)  1 = base; 2 = acid; 3 = conjugate base; 4 = conjugate acid

Question 20

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

Exam 7: Alkynes

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

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

What is IUPAC name of the following compound?

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?

Which sequence of reactions can be used to convert 1-pentene to 1-pentyne

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 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?

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

Which sequence of reactions can be used to convert (Z) 2-pentene to 2-pentyne

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

How many alkynes are there with the molecular formula C6H10?

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

What is the IUPAC name of the following compound? (CH3)2CHCH2-CºC-CH(CH3)2

What is the correct assignment of the acid, base, conjugate acid and conjugate base in the following equilibrium?

What is the IUPAC name of the following compound?

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

How many alkynes are there with the molecular formula C₆H₁₀?

What is the IUPAC name of the following compound? (CH₃)₂CHCH₂-CºC-CH(CH₃)₂