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What is/are the product(s) from the following reaction? What is/are the product(s) from the following reaction? A) II Minor, III Major B) II Major, III Minor C) III only D) I and II E) II and III


A) II Minor, III Major
B) II Major, III Minor
C) III only
D) I and II
E) II and III

F) A) and C)
G) A) and E)

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Draw the structure of the major product which results when the diene shown is treated with HBr at -80°C. Draw the structure of the major product which results when the diene shown is treated with HBr at -80°C.

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Does the following structures represent different compounds or resonance contributors? Does the following structures represent different compounds or resonance contributors?

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They are r...

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Cyclopentadiene can react with itself in a Diels-Alder reaction. Draw the endo and exo products.

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Draw the arrows to go from one resonance structure to another. Draw the arrows to go from one resonance structure to another.

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What descriptive term is applied to the type of diene represented by 1, 5-octadiene?


A) conjugated diene
B) cumulated diene
C) isolated diene
D) alkynyl diene
E) none of the above

F) A) and B)
G) A) and E)

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Which of the following is the strongest acid? Which of the following is the strongest acid? A) I B) II C) III D) IV E) V


A) I
B) II
C) III
D) IV
E) V

F) A) and B)
G) A) and C)

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What descriptive term is applied to the type of diene represented by 2,4-hexadiene?


A) conjugated diene
B) cumulated diene
C) isolated diene
D) alkynyl diene
E) none of the above

F) C) and D)
G) C) and E)

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Why does the (E,E)-isomer of 2,4-hexadiene react much more rapidly with dienophiles than does the (Z,Z)-isomer?

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The s-cis conformation, which ...

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What is/are the product(s) from the following reaction? What is/are the product(s) from the following reaction? A) I only B) II only C) I is minor, II is major D) I is major, II is minor E) equal amounts of I and II


A) I only
B) II only
C) I is minor, II is major
D) I is major, II is minor
E) equal amounts of I and II

F) B) and E)
G) A) and E)

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

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Which of the following is the most stable resonance contributor to acetic acid? Which of the following is the most stable resonance contributor to acetic acid? A) B) C) D) E)


A) Which of the following is the most stable resonance contributor to acetic acid? A) B) C) D) E)
B) Which of the following is the most stable resonance contributor to acetic acid? A) B) C) D) E)
C) Which of the following is the most stable resonance contributor to acetic acid? A) B) C) D) E)
D) Which of the following is the most stable resonance contributor to acetic acid? A) B) C) D) E)
E) Which of the following is the most stable resonance contributor to acetic acid? A) B) C) D) E)

F) A) and B)
G) All of the above

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Identify the most stable carbocation.


A) Identify the most stable carbocation. A) B) C) D) E)
B) Identify the most stable carbocation. A) B) C) D) E)
C) Identify the most stable carbocation. A) B) C) D) E)
D) Identify the most stable carbocation. A) B) C) D) E)
E) Identify the most stable carbocation. A) B) C) D) E)

F) A) and B)
G) B) and E)

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Which of the following is the most stable cation? Which of the following is the most stable cation? A) I B) II C) III D) IV E) V


A) I
B) II
C) III
D) IV
E) V

F) B) and C)
G) C) and E)

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Which of the following conjugated dienes would not react with a dieneophile in a Diels-Alder reaction? Which of the following conjugated dienes would not react with a dieneophile in a Diels-Alder reaction? A) I B) II C) III D) IV E) I and III


A) I
B) II
C) III
D) IV
E) I and III

F) B) and C)
G) B) and E)

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Which of the following statements about benzene is correct?


A) All of the carbon atoms are sp3 hybridized.
B) It has no delocalized electrons.
C) The carbon-carbon bond length is longer than that of ethane.
D) It is a planar molecule.
E) The carbon-hydrogen bonds are not the same length.

F) A) and C)
G) A) and B)

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Draw the major product of the reaction. Draw the major product of the reaction.

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blured image_TB1830_00...

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Stabilization of a charged species usually happens when this species can be more accurately depicted as a hybrid of several resonance contributing forms. Why is this the case?

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Stabilization result...

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Give the major organic product for the reaction. Give the major organic product for the reaction. A) B) C) D) E) no reaction


A) Give the major organic product for the reaction. A) B) C) D) E) no reaction
B) Give the major organic product for the reaction. A) B) C) D) E) no reaction
C) Give the major organic product for the reaction. A) B) C) D) E) no reaction
D) Give the major organic product for the reaction. A) B) C) D) E) no reaction
E) no reaction

F) A) and D)
G) A) and E)

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What is the thermodynamic product for the following reaction? What is the thermodynamic product for the following reaction? A) I B) II C) III D) IV E) V What is the thermodynamic product for the following reaction? A) I B) II C) III D) IV E) V


A) I
B) II
C) III
D) IV
E) V

F) A) and B)
G) B) and D)

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