Question 1

Which of the following reactions would produce isopropylbenzene?
A) 
B) 
C) 
D) 
E)All of these choices.

Accepted Answer

The answer of Which of the following reactions would produce...

Question 2

Which of these is a satisfactory synthesis of 1-chloro-2-phenylethane? A)C₆H₅CH₂CH₃ + Cl₂,Fe $\to$ B)C₆H₅CH₂CH₃ + Cl₂,400S1U1P1$\circ$S1S1P0C $\to$ C)C₆H₅CH₂CH₂OH + PCl₅ $\to$ D)C₆H₅CH=CH₂ + HCl,peroxide $\to$ E)C₆H₆ + CH₃CH₂Cl,AlCl₃ $\to$

Accepted Answer

The correct synthesis involves converting an alcohol (phenylethanol) to a chloroalkane using PCl5, which is a common method for such transformations.

Question 3

Which of the following reactions would yield cumene as the major product?
A) 
B) 
C) 
D) 
E)All of these choices.

Accepted Answer

The answer of Which of the following reactions would yield...

Question 4

Which of the following reactions could be used to synthesize tert-butylbenzene?
A) 
B) 
C) 
D)All of these choices.
E)None of these choices.

Accepted Answer

The answer of Which of the following reactions could be...

Question 5

Which reagent or test could you use to distinguish between phenylacetylene and vinylbenzene? A)NaOH/H₂O B)Br₂/CCl₄ C)IR Spectroscopy D)CrO₃/H₂SO₄ E)Concd.H₂SO₄

Accepted Answer

IR spectroscopy can be used to distinguish between phenylacetylene and vinylbenzene by analyzing their respective functional groups. Phenylacetylene contains a triple bond (C≡C) which will appear as a sharp absorption around 2100-2260 cm-1, while vinylbenzene contains an sp2 hybridized carbon-carbon double bond (C=C) which will appear as a weaker absorption around 1600-1680 cm-1 in the IR spectrum. None of the other reagents or tests listed can reliably distinguish between these two compounds.

Question 6

Which of the following reactions could be used to synthesize tert-butylbenzene?
A) 
B) 
C) 
D)All of these choices.
E)None of these choices.

Accepted Answer

The answer of Which of the following reactions could be...

Question 7

Which of the following reactions would yield isopropylbenzene as the major product?
A) 
B) 
C) 
D) 
E)All of these choices.

Accepted Answer

The answer of Which of the following reactions would yield...

Question 8

What would you expect to be the major product obtained from the following reaction? 
A)I
B)II
C)III
D)IV
E)V

Accepted Answer

The answer of What would you expect to be the...

Question 9

Which of the following reactions would produce cumene?
A) 
B) 
C) 
D) 
E)All of these choices.

Accepted Answer

The answer of Which of the following reactions would produce...

Question 10

What would you expect to be the major product obtained from the following reaction? 
A)I
B)II
C)III
D)IV
E)V

Accepted Answer

The answer of What would you expect to be the...

Question 11

What is the chief product of the Friedel-Crafts alkylation of benzene with 1-butene and AlCl₃? A)butylbenzene B)2-phenylbutane C)2-methyl-1-phenylpropane D)t-butylbenzene E)2,2-diphenylbutane

Accepted Answer

The Friedel-Crafts alkylation of benzene with 1-butene and AlCl3 leads to the formation of a carbocation intermediate. The most stable carbocation formed from 1-butene is the secondary carbocation, which results in the formation of 2-phenylbutane after the reaction with benzene.

Question 12

Which of these is a satisfactory synthesis of 1-chloro-2-phenylethane? A)C₆H₅CH₂CH₃ + Cl₂,Fe $\to$ B)C₆H₅CH₂CH₃ + Cl₂,400S1U1P1$\circ$S1S1P0C $\to$ C)C₆H₅CH₂CH₂OH + SOCl₂ $\to$ D)C₆H₅CH=CH₂ + HCl,peroxide $\to$ E)C₆H₆ + CH₃CH₂Cl,AlCl₃ $\to$

Accepted Answer

The correct synthesis involves converting an alcohol to a chloro compound using SOCl2 (thionyl chloride), which is a common method for transforming alcohols into alkyl halides without altering other sensitive functional groups.

Question 13

What is the chief product of the Friedel-Crafts alkylation of benzene with 1-butene and HF?
A)butylbenzene
B)2-phenylbutane
C)2-methyl-1-phenylpropane
D)t-butylbenzene
E)2,2-diphenylbutane

Accepted Answer

The answer of What is the chief product of the...

Question 14

Which of the following reactions would yield isopropylbenzene as the major product?
A) 
B) 
C) 
D) 
E)All of these choices.

Accepted Answer

The answer of Which of the following reactions would yield...

Question 15

Which of the following reactions would give the product(s)indicated in substantial amounts (i.e.,in greater than 50% yield)? 
A)I
B)II
C)III
D)All of these choices.
E)None of these choices.

Accepted Answer

The answer of Which of the following reactions would give...

Question 16

Consider the following reaction: what is the expected product? 
A)I
B)II
C)III
D)IV
E)V

Accepted Answer

The answer of Consider the following reaction: what is the...

Question 17

A mixture of chlorobenzene (1 mol)and anisole (1mol)is allowed to react with Br₂ (0.5 mol)in the presence of trace amounts of FeBr₃.What is the principal product of the competing reactions? A)1-bromo-4-chlorobenzene B)1-bromo-2-chlorobenzene C)1-bromo-3-chlorobenzene D)4-bromoanisole E)3-bromoanisole

Accepted Answer

The principal product is 4-bromoanisole because anisole, being an ether with a methoxy group, is more reactive towards electrophilic aromatic substitution than chlorobenzene due to the methoxy group's electron-donating effect. This directs the bromination to the para position relative to the methoxy group.

Question 18

Which of the following reactions could be used to synthesize tert-butylbenzene?
A) 
B) 
C) 
D)All of these choices.
E)None of these choices.

Accepted Answer

The answer of Which of the following reactions could be...

Question 19

A mixture of chlorobenzene (1 mol)and acetanilide (1mol)is allowed to react with Br₂ (0.5 mol)in the presence of trace amounts of FeBr₃.What is the principal product of the competing reactions? A)1-bromo-4-chlorobenzene B)1-bromo-2-chlorobenzene C)1-bromo-3-chlorobenzene D)4-bromoacetanilide E)3-bromoacetanilide

Accepted Answer

The principal product is 4-bromoacetanilide because the reaction conditions described (use of Br2 in the presence of FeBr3) are typical for a bromination reaction via electrophilic aromatic substitution. Acetanilide, having an amide group attached to the aromatic ring, directs the incoming bromine to the para position (position 4 relative to the amide group) due to the electron-donating resonance effect of the amide group, making 4-bromoacetanilide the principal product.

Question 20

Which of the following reactions would yield isopropylbenzene as the major product?
A) 
B) 
C) 
D)All of these choices.

Accepted Answer

The answer of Which of the following reactions would yield...

Quiz 15: Reactions of Aromatic Compounds

Which of the following reactions would produce isopropylbenzene?

Which of these is a satisfactory synthesis of 1-chloro-2-phenylethane?

Which of the following reactions would yield cumene as the major product?

Which of the following reactions could be used to synthesize tert-butylbenzene?

Which reagent or test could you use to distinguish between phenylacetylene and vinylbenzene?

Which of the following reactions could be used to synthesize tert-butylbenzene?

Which of the following reactions would yield isopropylbenzene as the major product?

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

Which of the following reactions would produce cumene?

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

What is the chief product of the Friedel-Crafts alkylation of benzene with 1-butene and AlCl₃?

Which of these is a satisfactory synthesis of 1-chloro-2-phenylethane?

What is the chief product of the Friedel-Crafts alkylation of benzene with 1-butene and HF?

Which of the following reactions would yield isopropylbenzene as the major product?

Which of the following reactions would give the product(s) indicated in substantial amounts (i.e.,in greater than 50% yield) ?

Consider the following reaction: what is the expected product?

A mixture of chlorobenzene (1 mol) and anisole (1mol) is allowed to react with Br₂ (0.5 mol) in the presence of trace amounts of FeBr₃.What is the principal product of the competing reactions?

Which of the following reactions could be used to synthesize tert-butylbenzene?

A mixture of chlorobenzene (1 mol) and acetanilide (1mol) is allowed to react with Br₂ (0.5 mol) in the presence of trace amounts of FeBr₃.What is the principal product of the competing reactions?

Which of the following reactions would yield isopropylbenzene as the major product?

Quiz 15: Reactions of Aromatic Compounds

Which of the following reactions would produce isopropylbenzene?

Which of these is a satisfactory synthesis of 1-chloro-2-phenylethane?

Which of the following reactions would yield cumene as the major product?

Which of the following reactions could be used to synthesize tert-butylbenzene?

Which reagent or test could you use to distinguish between phenylacetylene and vinylbenzene?

Which of the following reactions could be used to synthesize tert-butylbenzene?

Which of the following reactions would yield isopropylbenzene as the major product?

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

Which of the following reactions would produce cumene?

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

What is the chief product of the Friedel-Crafts alkylation of benzene with 1-butene and AlCl3?

Which of these is a satisfactory synthesis of 1-chloro-2-phenylethane?

What is the chief product of the Friedel-Crafts alkylation of benzene with 1-butene and HF?

Which of the following reactions would yield isopropylbenzene as the major product?

Which of the following reactions would give the product(s) indicated in substantial amounts (i.e.,in greater than 50% yield) ?

Consider the following reaction: what is the expected product?

A mixture of chlorobenzene (1 mol) and anisole (1mol) is allowed to react with Br2 (0.5 mol) in the presence of trace amounts of FeBr3.What is the principal product of the competing reactions?

Which of the following reactions could be used to synthesize tert-butylbenzene?

A mixture of chlorobenzene (1 mol) and acetanilide (1mol) is allowed to react with Br2 (0.5 mol) in the presence of trace amounts of FeBr3.What is the principal product of the competing reactions?

Which of the following reactions would yield isopropylbenzene as the major product?

What is the chief product of the Friedel-Crafts alkylation of benzene with 1-butene and AlCl₃?

A mixture of chlorobenzene (1 mol) and anisole (1mol) is allowed to react with Br₂ (0.5 mol) in the presence of trace amounts of FeBr₃.What is the principal product of the competing reactions?

A mixture of chlorobenzene (1 mol) and acetanilide (1mol) is allowed to react with Br₂ (0.5 mol) in the presence of trace amounts of FeBr₃.What is the principal product of the competing reactions?