Question 1

Polarizability:

Accepted Answer

A)  explains a nonpolar carbon−sulfur bond participating in polar reaction. 
B)  indicates the magnitude of a dipole moment. 
C)  is larger for smaller atoms with few electrons. 
D)  is the electric field associated with a polar bond. 
E)  all of these 
A)  explains a nonpolar carbon−sulfur bond participating in polar reaction. 
B)  indicates the magnitude of a dipole moment. 
C)  is larger for smaller atoms with few electrons. 
D)  is the electric field associated with a polar bond. 
E)  all of these

Question 2

Use the second and third steps of the reaction of 2-bromo-2-methylpropane with water, shown below, to answer the following question(s).  
-Refer to instructions. Draw arrows on the structures above showing electron flow in steps two and three of this reaction.

Accepted Answer

The answer of Use the second and third steps of...

Question 3

Use the first step of the reaction of 2-bromo-2-methylpropane with water, shown below, to answer the following question(s).  
-Refer to instructions. Add curved arrows to indicate electron flow in the first step.

Accepted Answer

The answer of Use the first step of the reaction...

Question 4

Use the second and third steps of the reaction of 2-bromo-2-methylpropane with water, shown below, to answer the following question(s).  
-Refer to instructions. Label the nucleophile, Nu, and the electrophile, E+, in the blanks provided under the structures.

Accepted Answer

Question 5

Match each definition to one of the terms below.
-The energy needed by reactants to reach the transition state.

Accepted Answer

A) transition state 
B) endergonic reaction 
C) activation energy 
D) Gibbs free energy change 
E) exergonic reaction
F)reaction intermediate 
A) transition state 
B) endergonic reaction 
C) activation energy 
D) Gibbs free energy change 
E) exergonic reaction
F)reaction intermediate

Question 6

Add curved arrows to the following reaction(s) to indicate the flow of electrons in each.
-If the yield for the following reaction is 76%, calculate Keq and predict the sign of ΔG°.

Accepted Answer

K_eq = [products]/[reac

Question 7

Use the reaction energy diagram below to answer the following question(s).  
-The transition state is found at _____ on the diagram.

Accepted Answer

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

Question 8

Classify each structure below as a nucleophile or electrophile, and briefly explain your choice.
-Classify and explain:
azide

Accepted Answer

Azide ion is a nucleophile bec

Question 9

Add curved arrows to the following reaction(s) to indicate the flow of electrons in each.
-Indicate flow:

Accepted Answer

The answer of Add curved arrows to the following reaction(s)...

Question 10

Consider the reaction of 2-bromo-2-methylpropane with water, shown below, to answer the following question(s).  
-Refer to instructions. This reaction is an example of:

Accepted Answer

A)  a substitution reaction. 
B)  a rearrangement reaction. 
C)  an elimination reaction. 
D)  an addition reaction. 
A)  a substitution reaction. 
B)  a rearrangement reaction. 
C)  an elimination reaction. 
D)  an addition reaction.

Question 11

Use the first step of the reaction of 2-bromo-2-methylpropane with water, shown below, to answer the following question(s).  
-In the following generic reaction between a halogen (X) and an alkane (R), which of the following steps would be considered a chain termination step?

Accepted Answer

A) X⎯X → 2X∙ 
B) X∙ + R → HX + R∙ 
C) R∙ + X⎯X → RX + X∙ 
D) X∙ + R∙ → RX 
E) X∙ + X∙ → X⎯X
F)R∙ + R∙ → R⎯R 
A) X⎯X → 2X∙ 
B) X∙ + R → HX + R∙ 
C) R∙ + X⎯X → RX + X∙ 
D) X∙ + R∙ → RX 
E) X∙ + X∙ → X⎯X
F)R∙ + R∙ → R⎯R

Question 12

In the reaction below:
a)Label the nucleophile (Nu) and the electrophile (E).
b)Draw arrows on the structures showing electron flow in the reaction.
-Label and indicate flow:

Accepted Answer

The answer of In the reaction below:
a)Label the nucleophile (Nu)...

Question 13

The reaction below is commonly used as a laboratory preparation of cyclohexene. Use this reaction to answer the following question(s).  
-Refer to instructions. If this reaction under a given set of conditions has a Keq value of 5.67, what percent conversion to the product would be expected?

Accepted Answer

A)  85% 
B)  5.67% 
C)  17% 
D)  15% 
E)  nearly 100% 
A)  85% 
B)  5.67% 
C)  17% 
D)  15% 
E)  nearly 100%

Question 14

Match each definition to one of the terms below.
-A reaction where ΔG° is positive.

Accepted Answer

A) transition state 
B) endergonic reaction 
C) activation energy 
D) Gibbs free energy change 
E) exergonic reaction
F)reaction intermediate 
A) transition state 
B) endergonic reaction 
C) activation energy 
D) Gibbs free energy change 
E) exergonic reaction
F)reaction intermediate

Question 15

Which of the following correctly compares the two elements in terms of polarizability?

Accepted Answer

A)  S > O 
B)  F > Br 
C)  N > P 
D)  Cl > I 
A)  S > O 
B)  F > Br 
C)  N > P 
D)  Cl > I

Question 16

Add curved arrows to the following reaction(s) to indicate the flow of electrons in each.
-The structures below show the stepwise bond making and bond breaking in this reaction. Draw curved arrows to show the electron flow that has occurred in each step.

Accepted Answer

The answer of Add curved arrows to the following reaction(s)...

Question 17

In the reaction below:
a)Label the nucleophile (Nu) and the electrophile (E).
b)Draw arrows on the structures showing electron flow in the reaction.
-Predict the product of the following reaction of Prostaglandin H2 by interpreting the flow of electrons as indicated by the curved arrows.

Accepted Answer

Question 18

Identify the functional groups present in each compound below, and predict the direction of polarity in each.
-Identify and predict:
mustard gas Cl−CH2CH2−S−CH2CH2−Cl

Accepted Answer

Question 19

Match each definition to one of the terms below.
-A reaction that involves a species with an unpaired electron.

Accepted Answer

A) polarization 
B) addition reaction 
C) radical reaction 
D) electrophile 
E) polar reaction
F)substitution
G)nucleophile
H)elimination reaction 
A) polarization 
B) addition reaction 
C) radical reaction 
D) electrophile 
E) polar reaction
F)substitution
G)nucleophile
H)elimination reaction

Exam 6: An Overview of Organic Reactions

Polarizability:

Use the second and third steps of the reaction of 2-bromo-2-methylpropane with water, shown below, to answer the following question(s). -Refer to instructions. Draw arrows on the structures above showing electron flow in steps two and three of this reaction.

Use the first step of the reaction of 2-bromo-2-methylpropane with water, shown below, to answer the following question(s). -Refer to instructions. Add curved arrows to indicate electron flow in the first step.

Use the second and third steps of the reaction of 2-bromo-2-methylpropane with water, shown below, to answer the following question(s). -Refer to instructions. Label the nucleophile, Nu, and the electrophile, E+, in the blanks provided under the structures.

Match each definition to one of the terms below. -The energy needed by reactants to reach the transition state.

Add curved arrows to the following reaction(s) to indicate the flow of electrons in each. -If the yield for the following reaction is 76%, calculate Keq and predict the sign of ΔG°.

Use the reaction energy diagram below to answer the following question(s). -The transition state is found at _____ on the diagram.

Classify each structure below as a nucleophile or electrophile, and briefly explain your choice. -Classify and explain: azide

Add curved arrows to the following reaction(s) to indicate the flow of electrons in each. -Indicate flow:

Consider the reaction of 2-bromo-2-methylpropane with water, shown below, to answer the following question(s). -Refer to instructions. This reaction is an example of:

Use the first step of the reaction of 2-bromo-2-methylpropane with water, shown below, to answer the following question(s). -In the following generic reaction between a halogen (X) and an alkane (R), which of the following steps would be considered a chain termination step?

In the reaction below: a)Label the nucleophile (Nu) and the electrophile (E). b)Draw arrows on the structures showing electron flow in the reaction. -Label and indicate flow:

The reaction below is commonly used as a laboratory preparation of cyclohexene. Use this reaction to answer the following question(s). -Refer to instructions. If this reaction under a given set of conditions has a Keq value of 5.67, what percent conversion to the product would be expected?

Match each definition to one of the terms below. -A reaction where ΔG° is positive.

Which of the following correctly compares the two elements in terms of polarizability?

Add curved arrows to the following reaction(s) to indicate the flow of electrons in each. -The structures below show the stepwise bond making and bond breaking in this reaction. Draw curved arrows to show the electron flow that has occurred in each step.

In the reaction below: a)Label the nucleophile (Nu) and the electrophile (E). b)Draw arrows on the structures showing electron flow in the reaction. -Predict the product of the following reaction of Prostaglandin H2 by interpreting the flow of electrons as indicated by the curved arrows.

Identify the functional groups present in each compound below, and predict the direction of polarity in each. -Identify and predict: mustard gas Cl−CH2CH2−S−CH2CH2−Cl

Match each definition to one of the terms below. -A reaction that involves a species with an unpaired electron.

Structure and Bonding

Polar Covalent Bonds; Acids and Bases

Organic Compounds: Alkanes and Their Stereochemistry

Organic Compounds: Cycloalkanes and Their Stereochemistry

Stereochemistry at Tetrahedral Centers

Alkenes and Alkynes

Reactions of Alkenes and Alkynes

Aromatic Compounds

Structure Determination: Mass Spectrometry, Infrared Spectroscopy, and Ultraviolet Spectroscopy

Structure Determination: Mass Spectrometry, Infrared Spectroscopy, and Ultraviolet Spectroscopy

Structure Determination: Nuclear Magnetic Resonance Spectroscopy

Organohalides: Nucleophilic Substitutions and Eliminations

Alcohols, Phenols, and Thiols; Ethers and Sulfides

Aldehydes and Ketones: Nucleophilic Addition Reactions

Carboxylic Acids and Nitriles

Carboxylic Acid Derivatives: Nucleophilic Acyl Substitution Reactions

Carbonyl Alpha-Substitution and Condensation Reactions

Amines and Heterocycles

Biomolecules: Amino Acids, Peptides, and Proteins

Amino Acid Metabolism

Biomolecules: Carbohydrates

Carbohydrate Metabolism

Biomolecules: Lipids and Their Metabolism

Biomolecules: Nucleic Acids and Their Metabolism

Orbitals and Organic Chemistry: Pericyclic Reactionse

Synthetic Polymerse

Filters

Use the second and third steps of the reaction of 2-bromo-2-methylpropane with water, shown below, to answer the following question(s). -Refer to instructions. Label the nucleophile, Nu, and the electrophile, E⁺, in the blanks provided under the structures.

Add curved arrows to the following reaction(s) to indicate the flow of electrons in each. -If the yield for the following reaction is 76%, calculate K_eq and predict the sign of ΔG°.

The reaction below is commonly used as a laboratory preparation of cyclohexene. Use this reaction to answer the following question(s). -Refer to instructions. If this reaction under a given set of conditions has a K_eq value of 5.67, what percent conversion to the product would be expected?

In the reaction below: a)Label the nucleophile (Nu) and the electrophile (E). b)Draw arrows on the structures showing electron flow in the reaction. -Predict the product of the following reaction of Prostaglandin H₂ by interpreting the flow of electrons as indicated by the curved arrows.

Identify the functional groups present in each compound below, and predict the direction of polarity in each. -Identify and predict: mustard gas Cl−CH₂CH₂−S−CH₂CH₂−Cl