Question 1

Which is the best sequence of reactions for the following transformation? A)i)HNO₃,H₂SO₄; ii)CH₃MgBr,Et₂O; iii)H₂O,NH₄Cl 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.

Accepted Answer

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Question 2

The major product(s),A,of the following reaction,  would be:
A)I
B)II
C)III
D)IV
E)V

Accepted Answer

The reaction involves the hydrolysis of an ester in the presence of an acid catalyst (H2SO4). The products obtained are carboxylic acid (IV) and alcohol (II). The anion in the carboxylic acid (IV) can be stabilized by resonance, which makes it a more stable product. Therefore, (IV) is expected to be the major product.

Question 3

Electron-donating groups increase the electron density on the aromatic ring,causing it to be more reactive than benzene itself towards EAS.These types of groups are called ___ groups.

Accepted Answer

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Question 4

Which compound is capable of undergoing both S_N1 and S_N2 reactions in ordinary nonacidic solvents? A)I B)II C)III D)IV E)V

Accepted Answer

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Question 5

The major product(s)of the following reaction,  would be:
A)I
B)II
C)III
D)IV
E)V

Accepted Answer

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Question 6

Which is the best sequence of reactions for the following transformation? A)i)HNO₃,H₂SO₄; ii)CH₃MgBr,Et₂O; iii)H₂O,NH₄Cl 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.

Accepted Answer

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Question 7

Draw a mechanism that explains the formation of the following product in this Friedel-Crafts alkylation:

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Question 8

S_N1 solvolysis of C₆H₅CH=CHCH₂Cl in water produces: A)C₆H₅CH₂C(OH)=CH₂ B)C₆H₅CH=CHCH₂OH C)C₆H₅CHOHCH=CH₂ D)A mixture of two of these choices. E)A mixture of all of these choices.

Accepted Answer

Solvolysis of the given compound in water leads to a mixture due to the formation of a carbocation intermediate, which can lead to different products depending on how the reaction proceeds.

Question 9

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

Accepted Answer

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Question 10

Which is the best sequence of reactions for the following transformation? A)i)HNO₃,H₂SO₄; ii)2EtMgBr,Et₂O; iii)NH₄Cl B)i)2EtMgBr,Et₂O; ii)H₃O⁺; iii)HNO₃,H₂SO₄ C)i)HNO₃,H₂SO₄; ii)NaBH₄,H₂O; iii)2EtMgBr,Et₂O D)i)LAH; ii)2EtLi,Et₂O; iii)HNO₃,H₂SO₄,heat E)None of these syntheses is satisfactory.

Accepted Answer

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Question 11

When two different groups are present on a benzene ring,the ___ generally determines the outcome of an EAS reaction.

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Question 12

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

Accepted Answer

The answer of Which is the best sequence of reactions...

Question 13

The major product(s)of the following reaction,  would be:
A)I
B)II
C)III
D)IV
E)V

Accepted Answer

The reaction is a substitution reaction of methane (CH4) with chlorine in the presence of UV light. The mechanism for the reaction involves the formation of free radicals, and the most stable intermediate radical produced is trichloromethyl (CCl3). IV is the only product containing this radical and is therefore the major product.

Question 14

Which alkyl halide can undergo both S_N1 and S_N2 reactions in nonacidic solvents? A)CH₃Br B)CH₃CH₂CH₂Br C) D)C₆H₅CH₂CH₂CH₂Br E)

Accepted Answer

The answer of Which alkyl halide can undergo both S_N1...

Question 15

Which is the best sequence of reactions for the following transformation? A)i)HNO₃,H₂SO₄; ii)2EtMgBr,Et₂O; iii)NH₄Cl B)i)2EtMgBr,Et₂O; ii)H₃O⁺; iii)HNO₃,H₂SO₄ C)i)HNO₃,H₂SO₄; ii)NaBH₄,H₂O; iii)2EtMgBr,Et₂O D)i)LAH; ii)2EtLi,Et₂O; iii)HNO₃,H₂SO₄,heat E)None of these syntheses is satisfactory.

Accepted Answer

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Question 16

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

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Question 17

In general,there are three steps to an electrophilic aromatic substitution reaction.These are:
a)formation of an ___;
b)reaction with an aromatic ring to form an ___; and
c)loss of a ___ to reform the aromatic system.

Accepted Answer

The answer of In general,there are three steps to an...

Question 18

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

Accepted Answer

The best sequence of reactions for the given transformation is:
i) HNO3, H2SO4
ii) SOCl2, pyridine
iii) LiAlH4
iv) H3O+

Option C has the correct sequence of reactions - HNO3, H2SO4 followed by SOCl2, pyridine, LiAlH4 and finally H3O+. The other options have incorrect or unnecessary steps in the sequence.

Question 19

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

Accepted Answer

The answer of What is the Birch reduction product of...

Question 20

The major product(s),A,of the following reaction,  would be:
A)I
B)II
C)III
D)IV
E)V

Accepted Answer

The reaction involves the substitution of the -OH group on phenol with an -I (iodine) group in the presence of an oxidizing agent, NaNO2/HCl. This reaction is known as the Sandmeyer reaction. The product formed is 4-iodophenol, which is choice C.

Quiz 15: Reactions of Aromatic Compounds

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

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

Electron-donating groups increase the electron density on the aromatic ring,causing it to be more reactive than benzene itself towards EAS.These types of groups are called ___ groups.

Which compound is capable of undergoing both S_N1 and S_N2 reactions in ordinary nonacidic solvents?

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

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

Draw a mechanism that explains the formation of the following product in this Friedel-Crafts alkylation:

S_N1 solvolysis of C₆H₅CH=CHCH₂Cl in water produces:

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

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

When two different groups are present on a benzene ring,the ___ generally determines the outcome of an EAS reaction.

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

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

Which alkyl halide can undergo both S_N1 and S_N2 reactions in nonacidic solvents?

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

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

In general,there are three steps to an electrophilic aromatic substitution reaction.These are: a)formation of an _; b)reaction with an aromatic ring to form an _; and c)loss of a ___ to reform the aromatic system.

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

What is the Birch reduction product of the following reaction?

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

Quiz 15: Reactions of Aromatic Compounds

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

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

Electron-donating groups increase the electron density on the aromatic ring,causing it to be more reactive than benzene itself towards EAS.These types of groups are called ___ groups.

Which compound is capable of undergoing both SN1 and SN2 reactions in ordinary nonacidic solvents?

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

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

Draw a mechanism that explains the formation of the following product in this Friedel-Crafts alkylation:

SN1 solvolysis of C6H5CH=CHCH2Cl in water produces:

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

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

When two different groups are present on a benzene ring,the ___ generally determines the outcome of an EAS reaction.

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

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

Which alkyl halide can undergo both SN1 and SN2 reactions in nonacidic solvents?

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

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

In general,there are three steps to an electrophilic aromatic substitution reaction.These are: a)formation of an ___; b)reaction with an aromatic ring to form an ___; and c)loss of a ___ to reform the aromatic system.

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

What is the Birch reduction product of the following reaction?

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

Which compound is capable of undergoing both S_N1 and S_N2 reactions in ordinary nonacidic solvents?

S_N1 solvolysis of C₆H₅CH=CHCH₂Cl in water produces:

Which alkyl halide can undergo both S_N1 and S_N2 reactions in nonacidic solvents?

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

In general,there are three steps to an electrophilic aromatic substitution reaction.These are: a)formation of an _; b)reaction with an aromatic ring to form an _; and c)loss of a ___ to reform the aromatic system.