Question 1

Which is the best sequence of reactions for the following transformation? 3,H2SO4;ii) CH3MgBr,Et2O;iii) H3O+,heat B)  i) CH3MgBr,Et2O;ii) H3O+,heat;iii) HNO3,H2SO4 C)  i) HNO3,H2SO4;ii) NaBH4,H2O;iii) H3O+,heat D)  i) HNO3,H2SO4;ii) LiAlH4,H2O;iii) H3O+,heat E)  None of these syntheses is satisfactory." class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   i) HNO3,H2SO4;ii) CH3MgBr,Et2O;iii) H3O+,heat
B)   i) CH3MgBr,Et2O;ii) H3O+,heat;iii) HNO3,H2SO4
C)   i) HNO3,H2SO4;ii) NaBH4,H2O;iii) H3O+,heat
D)   i) HNO3,H2SO4;ii) LiAlH4,H2O;iii) H3O+,heat
E)   None of these syntheses is satisfactory.F) D) and E)
G) A) and B)

Question 2

Which would be a good synthesis of m-nitrobenzoic acid?

Accepted Answer

A)  
B)  
C)  
D)   More than one of the above
E)   None of the aboveF) A) and C)
G) A) and D)

Question 3

Substituent groups affect both _____________ and _______________ in electrophilic aromatic substitution reactions.

Accepted Answer

reactivity...

Question 4

What would you expect to be the major product(s) obtained from the mononitration of m-dichlorobenzene?

Accepted Answer

A)   I
B)   II
C)   III
D)   Equal amounts of I and II
E)   Equal amounts of I,II and IIIF) C) and E)
G) All of the above

Question 5

The major product(s) ,A,of the following reaction,  would be:

Accepted Answer

A)   I
B)   II
C)   A mixture of I and II
D)   III
E)   IVF) A) and B)
G) A) and E)

Question 6

What would you expect to be the major product obtained from the following reaction?

Accepted Answer

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

Question 7

Which of the following carbocations would be most stable?

Accepted Answer

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

Question 8

Which reagent would you use to carry out the following transformation? tert-butylbenzene
-- →\rightarrow→ 
P-tert-butylbenzenesulfonic acid
+
O-tert-butylbenzenesulfonic acid

Accepted Answer

A)   HNO3/H2SO4
B)   tert-C4H9Cl/AlCl3
C)   H2SO3/peroxides
D)   SO3/H2SO4
E)   SO2/H2SO3 F) B) and D)
G) B) and C)

Question 9

What would be the major product of the following reaction?

Accepted Answer

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

Question 10

Which reagent(s) would you use to synthesize 2- and 4-bromo-1-cyclopentylbenzene from cyclopentylbenzene?

Accepted Answer

A)   N-Bromosuccinimide (NBS) ,CCl4,light
B)   PBr3
C)   Br2,FeBr3
D)   CH3CH2Br,AlBr3
E)   HBr,ROORF) C) and E)
G) A) and B)

Question 11

The major product(s) of the following reaction,

Accepted Answer

A)   I
B)   II
C)   A mixture of I and II
D)   III
E)   IVF) B) and E)
G) B) and C)

Question 12

Which would be the product of the following reaction sequence?

Accepted Answer

A)   I
B)   II
C)   III
D)   IV
E)   VF) All of the above
G) A) and D)

Question 13

Propose a reasonable synthesis of the following compound from benzene.

Accepted Answer

The answer of Propose a reasonable synthesis of the following...

Question 14

Which of the following compounds would be most reactive to ring bromination?

Accepted Answer

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

Question 15

The major product(s) of the following reaction,  would be:

Accepted Answer

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

Question 16

Which of the following compounds would you expect to be most reactive toward ring nitration?

Accepted Answer

A)   Benzene
B)   Toluene
C)   m-Xylene
D)   o-Xylene
E)   Benzoic acidF) None of the above
G) A) and C)

Question 17

Which alkyl halide would be most reactive in an SN2 reaction?

Accepted Answer

A)   C6H5CH2CH2CH2Br
B)  N2 reaction? 
A)   C6H5CH2CH2CH2Br 
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
C)  N2 reaction? 
A)   C6H5CH2CH2CH2Br 
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
D)  N2 reaction? 
A)   C6H5CH2CH2CH2Br 
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
E)  N2 reaction? 
A)   C6H5CH2CH2CH2Br 
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >F) A) and B)
G) A) and C)

Question 18

The major product(s) ,D,of the following reaction  would be:

Accepted Answer

A)   I
B)   II
C)   III
D)   IV
E)   Equal amounts of I and IIF) B) and C)
G) All of the above

Question 19

Which reagent(s) would you use to carry out the following transformation? isopropylbenzene -- →\rightarrow→  2- and 4-chloro-1-isopropylbenzene

Accepted Answer

A)   Cl2,light,and heat
B)   Cl2,FeCl3
C)   SOCl2
D)   C2H5Cl,AlCl3
E)   HCl,peroxides F) C) and D)
G) B) and E)

Question 20

Which is the best sequence of reactions for the following transformation? 2;ii) C6H6,AlCl3;iii) Zn(Hg) ,HCl;iv) HNO3,H2SO4 B)  i) SOCl2;ii) HNO3,H2SO4;iii) C6H6,AlCl3;iv) H2,Ni C)  i) HNO3,H2SO4;ii) SOCl2;iii) C6H6,AlCl3;iv) Zn(Hg) ,HCl D)  i) PBr3;ii) HNO3,H2SO4;iii) C6H6,AlCl3;iv) NaBH4,H2O E)  Two of these syntheses are satisfactory." class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   i) SOCl2;ii) C6H6,AlCl3;iii) Zn(Hg) ,HCl;iv) HNO3,H2SO4
B)   i) SOCl2;ii) HNO3,H2SO4;iii) C6H6,AlCl3;iv) H2,Ni
C)   i) HNO3,H2SO4;ii) SOCl2;iii) C6H6,AlCl3;iv) Zn(Hg) ,HCl
D)   i) PBr3;ii) HNO3,H2SO4;iii) C6H6,AlCl3;iv) NaBH4,H2O
E)   Two of these syntheses are satisfactory.F) C) and E)
G) A) and B)

Exam 15: Reactions of Aromatic Compounds

Which would be the product of the following reaction sequence?

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Which reagent(s) would you use to synthesize 2- and 4-bromo-1-cyclopentylbenzene from cyclopentylbenzene?

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Which is the best sequence of reactions for the following transformation?

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Propose a reasonable synthesis of the following compound from benzene.

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The major product(s) ,A,of the following reaction, would be:

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Which reagent(s) would you use to carry out the following transformation? isopropylbenzene -- →\rightarrow→ 2- and 4-chloro-1-isopropylbenzene

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Which of the following compounds would you expect to be most reactive toward ring nitration?

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The major product(s) of the following reaction, would be:

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Which of the following compounds would be most reactive to ring bromination?

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Which reagent would you use to carry out the following transformation? tert-butylbenzene -- →\rightarrow→ P-tert-butylbenzenesulfonic acid + O-tert-butylbenzenesulfonic acid

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Which is the best sequence of reactions for the following transformation?

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What would be the major product of the following reaction?

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The major product(s) ,D,of the following reaction would be:

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What would you expect to be the major product(s) obtained from the mononitration of m-dichlorobenzene?

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The major product(s) of the following reaction,

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Which of the following carbocations would be most stable?

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Which alkyl halide would be most reactive in an SN2 reaction?

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Which would be a good synthesis of m-nitrobenzoic acid?

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What would you expect to be the major product obtained from the following reaction?

Correct AnswerverifiedShow Answer

Substituent groups affect both _____________ and _______________ in electrophilic aromatic substitution reactions.

Correct Answerverifiedreactivity...View AnswerShow Answer

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Which reagent(s) would you use to carry out the following transformation? isopropylbenzene -- $\rightarrow$ 2- and 4-chloro-1-isopropylbenzene

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Which reagent would you use to carry out the following transformation? tert-butylbenzene -- $\rightarrow$ P-tert-butylbenzenesulfonic acid + O-tert-butylbenzenesulfonic acid

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Which alkyl halide would be most reactive in an S_N2 reaction?

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Substituent groups affect both _ and ___ in electrophilic aromatic substitution reactions.

Correct Answer
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reactivity...
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