Question 1

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

Accepted Answer

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

Question 2

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

Accepted Answer

A) cyclohexyne 
B) 1,3-cyclohexadiene 
C) cyclohexene 
D) 1,2-diaminocyclohexane 
A) cyclohexyne 
B) 1,3-cyclohexadiene 
C) cyclohexene 
D) 1,2-diaminocyclohexane B

Question 3

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

Accepted Answer

A) (
E)  3,4-dibromohexene 
B) (Z) 3,4-dibromohexene 
C) (
E)  2,3-dibromohexene 
D) (Z) 2,3-dibromobutene 
A) (
E)  3,4-dibromohexene 
B) (Z) 3,4-dibromohexene 
C) (
E)  2,3-dibromohexene 
D) (Z) 2,3-dibromobutene A

Question 4

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 5

Consider the following,   the product formed is shown below.

Accepted Answer

A) True 
 B)False

Question 6

_____

Accepted Answer

The answer of _____  ...

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

The triple bond in ethyne is made up of two $\pi$ bonds, each formed by lateral overlap of two p orbitals, and a  $\sigma$bond formed by end-on overlap of two sp hybrid orbitals.

Accepted Answer

A) True 
 B)False

Question 9

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

Accepted Answer

A) 2-methyl-3-hexene 
B) 2-methyl-3-heptyne 
C) 2-bromo-3-methylbutane 
D) 2-methyl-2-butene 
A) 2-methyl-3-hexene 
B) 2-methyl-3-heptyne 
C) 2-bromo-3-methylbutane 
D) 2-methyl-2-butene

Question 10

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

Accepted Answer

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

Question 11

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 12

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 13

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

Accepted Answer

A) H2/Lindlar catalyst 
B) Na/NH3 
C) (sia)2BH; followed by H2O2, NaOH 
D) BH3; followed by H2O2, NaOH 
A) H2/Lindlar catalyst 
B) Na/NH3 
C) (sia)2BH; followed by H2O2, NaOH 
D) BH3; followed by H2O2, NaOH

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 reaction?

Accepted Answer

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

Question 16

Acetylene (ethyne) is more acidic and has a shorter carbon to carbon bond than either ethane or ethene.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following reagents react with 2-butyne to form butane

Accepted Answer

A) H2/Lindlar catalyst 
B) H2/Pd 
C) (sia)2BH followed by CH3COOH 
D) Na/NH3 
A) H2/Lindlar catalyst 
B) H2/Pd 
C) (sia)2BH followed by CH3COOH 
D) Na/NH3

Question 18

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 19

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 20

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

Exam 7: Alkynes

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 IUPAC name of the following compound?

Consider the following, the product formed is shown below.

_____

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

The triple bond in ethyne is made up of two π\piπ bonds, each formed by lateral overlap of two p orbitals, and a σ\sigmaσ bond formed by end-on overlap of two sp hybrid orbitals.

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

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?

Acetylene (ethyne) is more acidic and has a shorter carbon to carbon bond than either ethane or ethene.

Which of the following reagents react with 2-butyne to form butane

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

How many alkynes are there with the molecular formula C6H10?

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

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

The triple bond in ethyne is made up of two $\pi$ bonds, each formed by lateral overlap of two p orbitals, and a $\sigma$ bond formed by end-on overlap of two sp hybrid orbitals.

How many alkynes are there with the molecular formula C₆H₁₀?