18 Questions
What is the common physical property of benzene and most alkylbenzenes?
Oily-smelling colorless liquids
Which of the following is a correct statement about naphthalene's physical state at room temperature?
It is a solid
What is the role of the delocalized π bond in benzene concerning its reactivity?
Attracts and reacts with electrophiles
What is the correct name for 2,3-dibromophenol when the benzene ring acts as a substituent on an alkyl or alkenyl chain?
2,3-dibromophenyl
Which statement accurately describes the boiling points of benzene and its alkyl derivatives?
Benzene has a higher boiling point than equivalent cycloalkanes
What type of intermolecular bonding is responsible for the solubility of benzene and alkylbenzenes in non-polar solvents like cyclohexane?
Van der Waals' forces
What effect does the methyl group have on the electron density in the C-H bond?
Increases the electron density
In electrophilic substitution, which position does a substituent prefer if it favors 3-substitution in methylbenzene?
3-position
Compared to cyclohexylamine, how does the basicity of phenylamine compare?
Phenylamine is a million times less basic
What is the most significant difference in basicities between phenylamine and alkyl amines?
Alkyl amines are more basic
In halogenobenzenes, which atom's lone pair of electrons influences the reactivity during nitrations?
Nitrogen atom in phenylamine
How do the reactions of halogenobenzenes compare to those of benzene?
Reactions are similar to those of benzene
Which of the following statements about methylbenzene (toluene) is correct?
The methyl group increases the electron density in the aromatic ring, making it more reactive towards electrophiles.
In the chlorination of methylbenzene, what is the major product formed?
A mixture of 2-chloromethylbenzene and 4-chloromethylbenzene
What is the mechanism of the chlorination reaction of methylbenzene?
Electrophilic substitution
Which of the following statements about the methyl group in methylbenzene is correct?
The methyl group is a 2,4-directing group.
What happens when methylbenzene is reacted with a strong oxidizing agent like potassium permanganate (KMnO4) or chromic acid (H2CrO4)?
The methyl group is oxidized to an aldehyde group.
Which of the following statements about alkylbenzenes is correct?
Alkylbenzenes are more reactive than benzene in electrophilic aromatic substitution reactions.
Test your knowledge on naming dibromophenols based on their structures and formulas. Identify and match the correct names with the given structures in this quiz.
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