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Draw a mechanism to rationalize the formation of the alkene product shown in the following transformation. Draw a mechanism to rationalize the formation of the alkene product shown in the following transformation.

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Which of the following reactions would give relatively more E2 than SN2 product? Reaction A: Which of the following reactions would give relatively more E2 than SN2 product? Reaction A: Reaction B: Reaction B: Which of the following reactions would give relatively more E2 than SN2 product? Reaction A: Reaction B:

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Which of the following statements is true?


A) The formation of the kinetic product has a higher activation energy than the formation of the thermodynamic product.
B) The kinetic product is more stable than the thermodynamic product.
C) The thermodynamic product forms faster than the kinetic product.
D) The transition state leading to the kinetic product is lower in energy than those leading to alternative products.
E) The kinetic and thermodynamic products form at the same rate; it is the energy difference between them that determines product distribution.

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

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What will happen to the rate of the reaction below if the concentration of ethanol is doubled? What will happen to the rate of the reaction below if the concentration of ethanol is doubled? A) The rate will double. B) The rate will be cut in half. C) The rate will be unaffected. D) The rate will increase by a factor of four. E) The rate will decrease by a factor of four.


A) The rate will double.
B) The rate will be cut in half.
C) The rate will be unaffected.
D) The rate will increase by a factor of four.
E) The rate will decrease by a factor of four.

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

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Which of these structures shows the preferred conformation for an E2 reaction to occur?


A) Which of these structures shows the preferred conformation for an E2 reaction to occur? A) B) C) D) E)
B) Which of these structures shows the preferred conformation for an E2 reaction to occur? A) B) C) D) E)
C) Which of these structures shows the preferred conformation for an E2 reaction to occur? A) B) C) D) E)
D) Which of these structures shows the preferred conformation for an E2 reaction to occur? A) B) C) D) E)
E) Which of these structures shows the preferred conformation for an E2 reaction to occur? A) B) C) D) E)

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

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B

Draw all the possible addition products formed in the reaction shown. Draw all the possible addition products formed in the reaction shown.

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Which of the following structures is not a possible product of the reaction shown here? Which of the following structures is not a possible product of the reaction shown here? A) B) C) D) E)


A) Which of the following structures is not a possible product of the reaction shown here? A) B) C) D) E)
B) Which of the following structures is not a possible product of the reaction shown here? A) B) C) D) E)
C) Which of the following structures is not a possible product of the reaction shown here? A) B) C) D) E)
D) Which of the following structures is not a possible product of the reaction shown here? A) B) C) D) E)
E) Which of the following structures is not a possible product of the reaction shown here? A) B) C) D) E)

F) A) and B)
G) None of the above

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In which of these reactions do you expect the structure of the transition state to most closely resemble the structure of the product? In which of these reactions do you expect the structure of the transition state to most closely resemble the structure of the product? A) I B) II C) III D) II and III E) I, II, and III


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

F) All of the above
G) C) and E)

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What is the major product of this reaction? What is the major product of this reaction? A) B) C) D) E)


A) What is the major product of this reaction? A) B) C) D) E)
B) What is the major product of this reaction? A) B) C) D) E)
C) What is the major product of this reaction? A) B) C) D) E)
D) What is the major product of this reaction? A) B) C) D) E)
E) What is the major product of this reaction? A) B) C) D) E)

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

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Draw the product of the following E2 reaction. Show stereochemistry at all stereogenic carbons. Draw the product of the following E2 reaction. Show stereochemistry at all stereogenic carbons.

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Which of the following carbocations is least likely to rearrange? Which of the following carbocations is least likely to rearrange? A) A B) B C) C D) D E) E


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

F) C) and D)
G) A) and C)

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Draw the product of the following E2 reaction and provide a mechanism for its formation.Draw the product of the following E2 reaction and provide a mechanism for its formation.

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Draw the major organic product of the following reaction. Draw the major organic product of the following reaction.

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Which of these is the most stable carbanion? Which of these is the most stable carbanion? A) A B) B C) C D) D E) E


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

F) A) and C)
G) A) and D)

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Draw a mechanism to rationalize the formation of the alkene product shown in the following transformation. Draw a mechanism to rationalize the formation of the alkene product shown in the following transformation.

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Which of the following statements is true about the two processes shown here? Which of the following statements is true about the two processes shown here? A) A forms faster than B because A is more stable. B) B forms faster than A because B is more stable. C) A forms faster than B because the transition state leading to A is lower in energy than the transition state leading to B. D) B forms faster than A because the transition state leading to B is lower in energy than the transition state leading to A. E) A and B form at the same rate.


A) A forms faster than B because A is more stable.
B) B forms faster than A because B is more stable.
C) A forms faster than B because the transition state leading to A is lower in energy than the transition state leading to B.
D) B forms faster than A because the transition state leading to B is lower in energy than the transition state leading to A.
E) A and B form at the same rate.

F) A) and D)
G) C) and D)

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Which of the following carbocations is (are) most likely to rearrange? Which of the following carbocations is (are) most likely to rearrange? A) I B) II C) III D) II, III, and IV E) I, II and IV


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

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

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Propose a mechanism to account for the formation of the observed product. Propose a mechanism to account for the formation of the observed product.

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Explain why Reaction A would give more E2 product than Reaction B, while Reaction B would give more SN2 product than Reaction A. Reaction A: Explain why Reaction A would give more E2 product than Reaction B, while Reaction B would give more S<sub>N</sub>2 product than Reaction A. Reaction A: Reaction B: Reaction B: Explain why Reaction A would give more E2 product than Reaction B, while Reaction B would give more S<sub>N</sub>2 product than Reaction A. Reaction A: Reaction B:

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SN2 reactions have much more c...

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Which of the following is the product of the reaction conditions shown? Which of the following is the product of the reaction conditions shown? A) B) C) D) E)


A) Which of the following is the product of the reaction conditions shown? A) B) C) D) E)
B) Which of the following is the product of the reaction conditions shown? A) B) C) D) E)
C) Which of the following is the product of the reaction conditions shown? A) B) C) D) E)
D) Which of the following is the product of the reaction conditions shown? A) B) C) D) E)
E) Which of the following is the product of the reaction conditions shown? A) B) C) D) E)

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

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A

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