Question 1

Using curved arrows, write a mechanism for the following reaction. If carbocations are formed, specify if they are primary, secondary or tertiary.

Accepted Answer

The answer of Using curved arrows, write a mechanism for...

Question 2

Pent-2-ene is an example of a disubstituted alkene. Use this alkene to answer the following question(s).  
-Refer to instructions. Circle the isomer of pent-2-ene that is most stable.

Accepted Answer

The answer of Pent-2-ene is an example of a disubstituted...

Question 3

Predict the major organic product(s) in the reaction below. If more than one major organic product is expected, draw each one.

Accepted Answer

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

Question 4

Dieldrin, CS1U1B112S1U1B0HS1U1B18S1U1B0ClS1U1B16S1U1B0O, is a pentacyclic (five-ring) compound formerly used as an insecticide. Use this information to answer the following question(s).
-Refer to instructions. Calculate the degree of unsaturation for Dieldrin.

Accepted Answer

Oxygen does not affect the base formula.

Question 5

Dieldrin, CS1U1B112S1U1B0HS1U1B18S1U1B0ClS1U1B16S1U1B0O, is a pentacyclic (five-ring) compound formerly used as an insecticide. Use this information to answer the following question(s).
-Refer to instructions. How many double bonds does dieldrin have?

Accepted Answer

Dieldrin has 6 degrees of unsa

Question 6

A molecule has three degrees of unsaturation. In this molecule there would be

Accepted Answer

A)  three rings 
B)  three double bonds 
C)  two rings and one double bond 
D)  one ring and two double bonds 
E)  any of these 
A)  three rings 
B)  three double bonds 
C)  two rings and one double bond 
D)  one ring and two double bonds 
E)  any of these

Question 7

Name this compound.

Accepted Answer

1-ethynyl-

Question 8

Below are all the chemical structures and intermediates involved in a reaction. On the structures provided, show all electron flow using the arrow formalism for the complete stepwise mechanism.

Accepted Answer

The answer of Below are all the chemical structures and...

Question 9

Provide names for each structure below. Be sure to include the cis,trans or E,Z designations where applicable.
-Which of the following substituents has the highest priority according to the Cahn-Ingold-Prelog system?

Accepted Answer

A)  −COOH 
B)  −CHO 
C)  −CH2OH 
D)  −CH3 
A)  −COOH 
B)  −CHO 
C)  −CH2OH 
D)  −CH3

Question 10

The following reaction is carried out in cyclohexane with the application of heat. Write the complete equation for the reaction below. If more than one major organic product is expected, draw each one.

Accepted Answer

The answer of The following reaction is carried out in...

Question 11

Which of the following would have the smallest ΔH°hydrog?

Accepted Answer

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

Question 12

What alkene would you use to prepare the following alkyl halide?

Accepted Answer

Only one a

Question 13

Match each definition to the term it describes.
-Predicts that the more stable carbocation intermediate is formed in electrophilic additions to alkenes.

Accepted Answer

A) Hammond Postulate 
B) Cahn-Ingold-Prelog Rules 
C) Markovnikov's Rule 
D) Degrees of Unsaturation 
A) Hammond Postulate 
B) Cahn-Ingold-Prelog Rules 
C) Markovnikov's Rule 
D) Degrees of Unsaturation

Question 14

Rank the carbocations below in order of increasing stability (least stable = 1; most stable = 3). Place the number corresponding to the carbocation's relative stability in the blank below the structure.

Accepted Answer

The answer of Rank the carbocations below in order of...

Question 15

Match each definition to the term it describes.
-Predicts that the transition state of an exergonic reaction step structurally resembles the reactant.

Accepted Answer

A) Hammond Postulate 
B) Cahn-Ingold-Prelog Rules 
C) Markovnikov's Rule 
D) Degrees of Unsaturation 
A) Hammond Postulate 
B) Cahn-Ingold-Prelog Rules 
C) Markovnikov's Rule 
D) Degrees of Unsaturation

Question 16

Match each definition to the term it describes.
-Predicts the total number of multiple bonds and rings.

Accepted Answer

A) Hammond Postulate 
B) Cahn-Ingold-Prelog Rules 
C) Markovnikov's Rule 
D) Degrees of Unsaturation 
A) Hammond Postulate 
B) Cahn-Ingold-Prelog Rules 
C) Markovnikov's Rule 
D) Degrees of Unsaturation

Exam 7: Alkenes and Alkynes

Using curved arrows, write a mechanism for the following reaction. If carbocations are formed, specify if they are primary, secondary or tertiary.

Pent-2-ene is an example of a disubstituted alkene. Use this alkene to answer the following question(s). -Refer to instructions. Circle the isomer of pent-2-ene that is most stable.

Predict the major organic product(s) in the reaction below. If more than one major organic product is expected, draw each one.

Dieldrin, C12H8Cl6O, is a pentacyclic (five-ring) compound formerly used as an insecticide. Use this information to answer the following question(s). -Refer to instructions. Calculate the degree of unsaturation for Dieldrin.

Dieldrin, C12H8Cl6O, is a pentacyclic (five-ring) compound formerly used as an insecticide. Use this information to answer the following question(s). -Refer to instructions. How many double bonds does dieldrin have?

A molecule has three degrees of unsaturation. In this molecule there would be

Name this compound.

Below are all the chemical structures and intermediates involved in a reaction. On the structures provided, show all electron flow using the arrow formalism for the complete stepwise mechanism.

Provide names for each structure below. Be sure to include the cis,trans or E,Z designations where applicable. -Which of the following substituents has the highest priority according to the Cahn-Ingold-Prelog system?

The following reaction is carried out in cyclohexane with the application of heat. Write the complete equation for the reaction below. If more than one major organic product is expected, draw each one.

Which of the following would have the smallest ΔH°hydrog?

What alkene would you use to prepare the following alkyl halide?

Match each definition to the term it describes. -Predicts that the more stable carbocation intermediate is formed in electrophilic additions to alkenes.

Rank the carbocations below in order of increasing stability (least stable = 1; most stable = 3). Place the number corresponding to the carbocation's relative stability in the blank below the structure.

Match each definition to the term it describes. -Predicts that the transition state of an exergonic reaction step structurally resembles the reactant.

Match each definition to the term it describes. -Predicts the total number of multiple bonds and rings.

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

An Overview of Organic Reactions

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

Dieldrin, C₁₂H₈Cl₆O, is a pentacyclic (five-ring) compound formerly used as an insecticide. Use this information to answer the following question(s). -Refer to instructions. Calculate the degree of unsaturation for Dieldrin.

Dieldrin, C₁₂H₈Cl₆O, is a pentacyclic (five-ring) compound formerly used as an insecticide. Use this information to answer the following question(s). -Refer to instructions. How many double bonds does dieldrin have?

Which of the following would have the smallest ΔH°_hydrog?