Question 1

Give the major product for the following E2 reaction.

Accepted Answer

A)    
B)    
C)    
D)    
E) no reaction 
A)    
B)    
C)    
D)    
E) no reaction

Question 2

Provide the major organic product(s)in the reaction below.

Accepted Answer

The answer of Provide the major organic product(s)in the reaction...

Question 3

Provide the structure of the major organic product in the following reaction.

Accepted Answer

The answer of Provide the structure of the major organic...

Question 4

Give the name(s)of the product(s)for the following SN2 reaction.

Accepted Answer

A) (S)-2-hexanol 
B) (R)-2-hexanol 
C) (S)-3-hexanol 
D) (R)-3-hexanol 
A) (S)-2-hexanol 
B) (R)-2-hexanol 
C) (S)-3-hexanol 
D) (R)-3-hexanol

Question 5

Which of the following is classified as a vinyl halide?

Accepted Answer

A) CH3CH   CHOH 
B) CH3CH   CHCl 
C) CH3CH   CHCH2Cl 
D) CH3CH2CH2CH2Br 
E) BrCH2CH   CH2 
A) CH3CH   CHOH 
B) CH3CH   CHCl 
C) CH3CH   CHCH2Cl 
D) CH3CH2CH2CH2Br 
E) BrCH2CH   CH2

Question 6

The rate of an SN1 reaction is fastest in

Accepted Answer

A) 100% ethanol. 
B) 80% ethanol and 20% water. 
C) 50% ethanol and 50% water. 
D) 25% ethanol and 75% water. 
E) 100% water. 
A) 100% ethanol. 
B) 80% ethanol and 20% water. 
C) 50% ethanol and 50% water. 
D) 25% ethanol and 75% water. 
E) 100% water.

Question 7

Draw the product of the following reaction.

Accepted Answer

The answer of Draw the product of the following reaction....

Question 8

Provide the structure of the major organic product of the following reaction.

Accepted Answer

The answer of Provide the structure of the major organic...

Question 9

Give the mechanism of the reaction shown below.

Accepted Answer

The answer of Give the mechanism of the reaction shown...

Question 10

Which of the following best explains why SN1 reactions involving a neutral reactant are faster in polar solvents?

Accepted Answer

A) The substrate is more soluble in polar solvents. 
B) The substrate is less soluble in polar solvents. 
C) The nucleophile is solvated by polar solvents. 
D) Solvation by polar solvents stabilizes the carbocation. 
E) Solvation by polar solvents stabilizes the transition state. 
A) The substrate is more soluble in polar solvents. 
B) The substrate is less soluble in polar solvents. 
C) The nucleophile is solvated by polar solvents. 
D) Solvation by polar solvents stabilizes the carbocation. 
E) Solvation by polar solvents stabilizes the transition state.

Question 11

How many distinct alkene products are possible when the alkyl iodide below undergoes E2 elimination?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) 5 
A) 1 
B) 2 
C) 3 
D) 4 
E) 5

Question 12

Show the carbocation intermediate formed during the synthesis of geraniol by SN1 reaction.

Accepted Answer

Question 13

Rank the species below in order of leaving group capabilities in SN2 reactions (worst leaving group to best):
CH3O-,H2O,C6H5SO3-,H2N-.

Accepted Answer

H₂N^- < CH₃O^- <

Question 14

Which halide reacts most rapidly via an SN2 mechanism?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 15

Which sequence of reagents works best to convert 1-bromobutane to hexane?

Accepted Answer

A) 1)NaOCH3,CH3OH 2.NaCN 3.Na,NH3 
B) 1)NaC   CH 2.H2 (excess),Pd/C 
C) 1)CH3CH2OH,delta 2.H2 (excess),Pd/C 
D) 1)NaCN 2.BH3*THF 3.HO-,H2O2 
E) 1)NaC   CCH2CH3 2.Na,NH3 
A) 1)NaOCH3,CH3OH 2.NaCN 3.Na,NH3 
B) 1)NaC   CH 2.H2 (excess),Pd/C 
C) 1)CH3CH2OH,delta 2.H2 (excess),Pd/C 
D) 1)NaCN 2.BH3*THF 3.HO-,H2O2 
E) 1)NaC   CCH2CH3 2.Na,NH3

Question 16

Draw all likely alkene products in the following reaction and circle the product you expect to predominate.

Accepted Answer

The answer of Draw all likely alkene products in the...

Question 17

Which of the following best describes the carbon-chlorine bond of an alkyl chloride?

Accepted Answer

A) nonpolar; no dipole 
B) polar; δ+ at carbon and δ- at chlorine 
C) polar; δ- at carbon and δ+ at chlorine 
D) ionic 
E) none of the above 
A) nonpolar; no dipole 
B) polar; δ+ at carbon and δ- at chlorine 
C) polar; δ- at carbon and δ+ at chlorine 
D) ionic 
E) none of the above

Question 18

Which of the following species is the least nucleophilic?

Accepted Answer

A) (CH3)3CO- 
B) H2O 
C) (CH3)3N 
D) BF3 
E) CN- 
A) (CH3)3CO- 
B) H2O 
C) (CH3)3N 
D) BF3 
E) CN-

Question 19

Why are vinylic halides unreactive in both SN2 and SN1 reactions?

Accepted Answer

Vinylic halides do not undergo S_N2 reacti

Question 20

Geraniol is a fragrant alcohol found in roses.It is biologically synthesized from geranyl phosphate by SN1.What is the leaving group in this reaction?

Accepted Answer

Exam 9: Substitution and Elimination Reactions of Alkyl Halides

Give the major product for the following E2 reaction.

Provide the major organic product(s)in the reaction below.

Provide the structure of the major organic product in the following reaction.

Give the name(s)of the product(s)for the following SN2 reaction.

Which of the following is classified as a vinyl halide?

The rate of an SN1 reaction is fastest in

Draw the product of the following reaction.

Provide the structure of the major organic product of the following reaction.

Give the mechanism of the reaction shown below.

Which of the following best explains why SN1 reactions involving a neutral reactant are faster in polar solvents?

How many distinct alkene products are possible when the alkyl iodide below undergoes E2 elimination?

Show the carbocation intermediate formed during the synthesis of geraniol by SN1 reaction.

Rank the species below in order of leaving group capabilities in SN2 reactions (worst leaving group to best): CH3O-,H2O,C6H5SO3-,H2N-.

Which halide reacts most rapidly via an SN2 mechanism?

Which sequence of reagents works best to convert 1-bromobutane to hexane?

Draw all likely alkene products in the following reaction and circle the product you expect to predominate.

Which of the following best describes the carbon-chlorine bond of an alkyl chloride?

Which of the following species is the least nucleophilic?

Why are vinylic halides unreactive in both SN2 and SN1 reactions?

Geraniol is a fragrant alcohol found in roses.It is biologically synthesized from geranyl phosphate by SN1.What is the leaving group in this reaction?

Remembering General Chemistry: Electronic Structure and Bonding

Acids and Bases: Central to Understanding Organic Chemistry

An Introduction to Organic Compounds: Nomenclature, physical Properties, and Structure

Isomers: the Arrangement of Atoms in Space

Alkenes: Structure,nomenclature,and an Introduction to Reactivity - Thermodynamics and Kinetics

The Reactions of Alkenes - the Stereochemistry of Addition Reactions

The Reactions of Alkynes - Introduction to Multistep Synthesis

Delocalized Electrons: Their Effect on Stability, pka, and the Products of a Reaction - Aromaticity and Electronic Effects: an Introduction to the Reactions of Benzene

Reactions of Alcohols, ethers, epoxides, amines and Sulfur-Containing Compounds

Organometallic Compounds

Radicals

Mass Spectrometry,infrared Spectroscopy,and Uvvis Spectroscopy

Nmr Spectroscopy

Reactions of Carboxylic Acids and Carboxylic Acid Derivatives

Reactions of Aldehydes and Ketones

Reactions at the Α-Carbon

Reactions of Benzene and Substituted Benzenes

More About Amines - Reactions of Heterocylic Compounds

The Organic Chemistry of Carbohydrates

Amino Acids,peptides,and Proteins

Catalysis in Organic Reactions and in Enzymatic Reactions

The Organic Chemistry of the Coenzymes, compounds Derived From Vitamins

The Organic Chemistry of the Metabolic Pathways

The Organic Chemistry of Lipids

The Chemistry of the Nucleic Acids

Synthetic Polymers

Pericyclic Reactions

Filters

Give the name(s)of the product(s)for the following S_N2 reaction.

The rate of an S_N1 reaction is fastest in

Which of the following best explains why S_N1 reactions involving a neutral reactant are faster in polar solvents?

Show the carbocation intermediate formed during the synthesis of geraniol by S_N1 reaction.

Rank the species below in order of leaving group capabilities in S_N2 reactions (worst leaving group to best): CH₃O^-,H₂O,C₆H₅SO₃^-,H₂N^-.

Which halide reacts most rapidly via an S_N2 mechanism?

Why are vinylic halides unreactive in both S_N2 and S_N1 reactions?

Geraniol is a fragrant alcohol found in roses.It is biologically synthesized from geranyl phosphate by S_N1.What is the leaving group in this reaction?