Question 1

Which of the following is the correct IUPAC name for the compound with two nitro groups attached to a benzene ring at the 2 and 6 positions?

Accepted Answer

2,6-dinitroanisole

Question 2

In the reaction where benzene reacts with methyl chloride ($$\mathrm{CH_3Cl}) in $$the presence of a Lewis acid, what type of reaction mechanism is involved?

Accepted Answer

An electrophilic aromatic substitution

Question 3

Which of the following compounds would you expect to be aromatic according to Hückel's rule?

Accepted Answer

IV

Question 4

A student mixes benzene with bromine ($$\mathrm{Br_2$}) $$and iron(III) bromide ($$\mathrm{$$FeBr_3$$}). $$What is the major product of this reaction?

Accepted Answer

Bromobenzene

Question 5

Which of the following statements best explains why benzene is less reactive towards addition reactions than alkenes?

Accepted Answer

Benzene has delocalized electrons that stabilize the ring structure.

Question 6

Which reagent would you use to convert benzene into nitrobenzene?

Accepted Answer

Concentrated $$\mathrm{$$HNO_3$$}$$ and $$\mathrm{H_2SO_4}$$

Question 7

Which of the following is a key step in the mechanism of electrophilic aromatic substitution?

Accepted Answer

Formation of a carbocation intermediate (arenium ion)

Question 8

A chemist wants to synthesize p-nitroaniline from benzene. Which sequence of reactions would be most efficient?

Accepted Answer

Nitration, then reduction

Question 9

Which of the following compounds is NOT aromatic?

Accepted Answer

Cyclobutadiene

Question 10

What is the product when benzene reacts with acetyl chloride ($$\mathrm{CH_3COCl}) in $$the presence of $$\mathrm{$$AlCl_3$$}$$?

Accepted Answer

Acetophenone

Question 11

Which of the following is a common misconception about aromatic compounds?

Accepted Answer

All aromatic compounds must contain a benzene ring.

Question 12

Which of the following best describes the role of a Lewis acid in a Friedel-Crafts alkylation?

Accepted Answer

It activates the alkyl halide by forming a carbocation.

Question 13

Which of the following is the correct formula for Hückel's rule?

Accepted Answer

$$4n+2$$ $$\pi$$ electrons

Question 14

Which of the following is a product of the nitration of toluene?

Accepted Answer

o-Nitrotoluene

Question 15

A patient is exposed to aniline derivatives. Which reaction type is most likely involved in their metabolism in the liver?

Accepted Answer

Oxidation

Question 16

Which of the following statements is true about the resonance energy of benzene?

Accepted Answer

It makes benzene more stable than hypothetical cyclohexatriene.

Question 17

Which of the following is the major product when naphthalene undergoes sulfonation?

Accepted Answer

1-naphthalenesulfonic acid

Question 18

Which of the following is a correct statement about the reactivity of aromatic compounds in electrophilic substitution reactions?

Accepted Answer

Electron-donating groups increase the rate of reaction.

Question 19

Which of the following is the correct order of reactivity for aromatic compounds in electrophilic aromatic substitution?

Accepted Answer

Toluene \u003e Benzene \u003e Nitrobenzene

Question 20

Which of the following is a real-world application of Friedel-Crafts alkylation?

Accepted Answer

Synthesis of ethylbenzene for styrene production

Aromatic Compounds, Electrophilic Aromatic Substitution, and Aromaticity

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