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Which is more highly regioselective: the addition of HCl to methylenecyclohexane or to 1-methylcyclohexene? Explain.

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Addition to methylenecyclohexane is more...

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What is the major product of the following reaction? What is the major product of the following reaction? A) \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 3 } B) C) D) E)


A) CH3CH2CH2CH2CH3\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 3 }
B) What is the major product of the following reaction? A) \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 3 } B) C) D) E)
C) What is the major product of the following reaction? A) \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 3 } B) C) D) E)
D) What is the major product of the following reaction? A) \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 3 } B) C) D) E)
E) What is the major product of the following reaction? A) \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 3 } B) C) D) E)

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Name BrCH2CH2C≡CCH2CH3\mathrm { BrCH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { C } \equiv \mathrm { CCH } _ { 2 } \mathrm { CH } _ { 3 }

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Draw the major product of the following reaction. The mechanism is the same as the mechanism for the addition of water to an alkene. Draw the major product of the following reaction. The mechanism is the same as the mechanism for the addition of water to an alkene.

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Which of the following statements is not true about propyne HC≡C−CH3\mathrm { HC } \equiv \mathrm { C } - \mathrm { CH } _ { 3 } ?


A) It contains six sigma bonds.
B) It contains three pi bonds.
C) The H−C−H\mathrm { H } - \mathrm { C } - \mathrm { H } bond angle is about 109.5∘109.5 ^ { \circ }
D) The C−C−C\mathrm { C } - \mathrm { C } - \mathrm { C } bond angle is 180∘.180 ^ { \circ } .
E) The pi bond is weaker than the sigma bond.

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Write structures and give systematic names for all alkynes with molecular formula C5H8.

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Name the following compound: Name the following compound:

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5,6,6-trim...

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Draw the major product of the following reaction. The mechanism is the same as the mechanism for the addition of water to an alkene. Draw the major product of the following reaction. The mechanism is the same as the mechanism for the addition of water to an alkene.

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Draw the structures of the two alkenes that react with HBr to form 1-bromo-1- methylcyclopentane as the major product.

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What is the major product when 1-hexyne reacts with excess HBr?


A) 1,1 -dibromohexane
B) 1,1-dibromohexene
C) 1,2 -dibromohexene
D) 1,2-dibromohexane
E) 2,2 -dibromohexane

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Name HC≡CCH2CH2CH3.\mathrm { HC } \equiv \mathrm { CCH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 3 } .

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Draw the major product of the following reaction: Draw the major product of the following reaction:

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Draw the major product of the following reaction: Draw the major product of the following reaction:

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Draw the major product that is formed when 2-butyne reacts wit H2SO4 in water.

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Draw the major product that is formed when 2-butyne reacts with 2 equivalents of HCl.

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What is the major product of the following reaction? What is the major product of the following reaction? I. II. III. IV. V. A) I B) II C) III D) IV E) V I. What is the major product of the following reaction? I. II. III. IV. V. A) I B) II C) III D) IV E) V II. What is the major product of the following reaction? I. II. III. IV. V. A) I B) II C) III D) IV E) V III. What is the major product of the following reaction? I. II. III. IV. V. A) I B) II C) III D) IV E) V IV. What is the major product of the following reaction? I. II. III. IV. V. A) I B) II C) III D) IV E) V V. What is the major product of the following reaction? I. II. III. IV. V. A) I B) II C) III D) IV E) V


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

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Draw the major product of the following reaction. The mechanism is the same as the mechanism for the addition of water to an alkene. Draw the major product of the following reaction. The mechanism is the same as the mechanism for the addition of water to an alkene.

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Draw the major product of the following reaction: Draw the major product of the following reaction:

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Draw the major product of the following reaction: Draw the major product of the following reaction:

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Draw the major product of the following reaction: Draw the major product of the following reaction:

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