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

The following species is referred to as a(an)_________________.

Accepted Answer

acetylide

Question 3

Which of the following reagents react with 2-butyne to form (Z)-2-butene
1)H2/Lindlar catalyst
2)(sia)2BH followed by CH3COOH
3)Na/NH3

Accepted Answer

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

Question 4

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 5

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 6

What is IUPAC name of the following compound?

Accepted Answer

The answer of What is IUPAC name of the following...

Question 7

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 8

Consider an unknown with the molecular formula C4H6. The index of hydrogen deficiency of this compound is _____.

Accepted Answer

Question 9

How many terminal alkynes are there with the molecular formula C7H12?

Accepted Answer

A) 5 
B) 7 
C) 8 
D) 9 
A) 5 
B) 7 
C) 8 
D) 9

Question 10

Select the best reagent or sequence of reagents from the list provided which would best accomplish each transformation below. Place the letter corresponding to the reagent(s) in the blank to the left of each reaction. Each transformation requires only one answer.
-_____

Accepted Answer

A) H2SO4, HgSO4 
B) H2, Lindlar 
C) 1.BH3, THF  2.H2O2, NaOH 
D) 1.NaNH2, NH3(l) 2.CH3CH2I 
E) 1. Br2,CH2Cl2  2. 2NaNH2, NH3(l)
F)1.HCl  2.NaNH2, NH3(l)
G)Li, NH3(l)
H)1.	NaNH2, NH3(l)
	2.	CH3CH2CH2I 
A) H2SO4, HgSO4 
B) H2, Lindlar 
C) 1.BH3, THF  2.H2O2, NaOH 
D) 1.NaNH2, NH3(l) 2.CH3CH2I 
E) 1. Br2,CH2Cl2  2. 2NaNH2, NH3(l)
F)1.HCl  2.NaNH2, NH3(l)
G)Li, NH3(l)
H)1.	NaNH2, NH3(l)
	2.	CH3CH2CH2I

Question 11

H2 and Ni would be the required reagents for the following conversion.

Accepted Answer

A) True 
 B)False

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 IUPAC name of the following compound?

Accepted Answer

The answer of What is IUPAC name of the following...

Question 14

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 15

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 16

The product of the reaction when the following substance is treated with BH3 in THF followed by H2O2 would be a ketone.

Accepted Answer

A) True 
 B)False

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 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 19

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 20

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

Exam 7: Alkynes

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

The following species is referred to as a(an)_________________.

Which of the following reagents react with 2-butyne to form (Z)-2-butene 1)H2/Lindlar catalyst 2)(sia)2BH followed by CH3COOH 3)Na/NH3

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

Which of the following has the lowest pKa?

What is IUPAC name of the following compound?

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

Consider an unknown with the molecular formula C4H6. The index of hydrogen deficiency of this compound is _____.

How many terminal alkynes are there with the molecular formula C7H12?

Select the best reagent or sequence of reagents from the list provided which would best accomplish each transformation below. Place the letter corresponding to the reagent(s) in the blank to the left of each reaction. Each transformation requires only one answer. -_____

H2 and Ni would be the required reagents for the following conversion.

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

What is IUPAC name of the following compound?

What is the IUPAC name for the following compound?

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

The product of the reaction when the following substance is treated with BH3 in THF followed by H2O2 would be a ketone.

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

What is the 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?

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

Which of the following reagents react with 2-butyne to form (Z)-2-butene 1)H₂/Lindlar catalyst 2)(sia)₂BH followed by CH₃COOH 3)Na/NH₃

Which of the following has the lowest pK_a?

Consider an unknown with the molecular formula C₄H₆. The index of hydrogen deficiency of this compound is _____.

How many terminal alkynes are there with the molecular formula C₇H₁₂?

H₂ and Ni would be the required reagents for the following conversion.

The product of the reaction when the following substance is treated with BH₃ in THF followed by H₂O₂ would be a ketone.