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Lesson Worksheet: Reactions of Benzene Chemistry

In this worksheet, we will practice describing addition and substitution reactions of benzene and predicting what products are formed.

Q1:

What product is produced from the hydrogenation of benzene using a nickel catalyst and excess hydrogen?

  • ACyclohexene
  • BCarbon dioxide
  • CEthyne
  • DCyclohexane
  • EHexane

Q2:

The tosyl group is used extensively in organic synthesis, and it is the anionic derivative of the tosylic acid shown. Which two reagents would react when heated to form tosylic acid and water?

SO3HCH3
  • ABenzene and sulfur dioxide
  • BNitrobenzene and sulfuric acid
  • CBenzene and sulfuric acid
  • DToluene and sulfuric acid
  • EToluene and hydrogen sulfide

Q3:

What product will be formed from the alkylation of benzene as shown in the reaction scheme?

+AlCl3?+HClCH3CCH3ClCH3
  • A
    CCH3ClCH3
  • B
    CCH3CH3CH3
  • C
    CHCH3CH2CH3
  • D
    CHCH3CH3
  • E
    CCH3CH3CH3Cl

Q4:

The reaction scheme shows how benzene can react with halogens in different ways depending on the reaction conditions shown.

What is the structure of product A?

  • A
    Cl
  • B
    ClClClClClCl
  • C
    ClClClClClCl
  • D
    ClClClCl
  • E
    ClClClCl

What is the structure of product B?

  • A
    ClClClClClCl
  • B
    Cl
  • C
    ClClClCl
  • D
    ClClClClClCl
  • E
    ClCl

Q5:

The reaction of toluene with one equivalent of nitric acid can produce three different positional isomers, as shown:

Which product is least likely to be produced from this reaction?

  • AA
  • BB
  • CC

Q6:

Which of the following reactions is not a substitution reaction of benzene?

  • AConversion of benzene to toluene
  • BConversion of benzene to benzene sulfonic acid
  • CConversion of benzene to nitrobenzene
  • DConversion of benzene to hexachlorocyclohexane
  • EConversion of benzene to chlorobenzene

Q7:

Consider the following reaction:

What product is formed from it?

  • A
  • B
  • C
  • D
  • E

Q8:

The Friedel–Crafts acylation of benzene occurs in a similar way to the alkylation of benzene, as shown:

+?+HClAlCl3CH3CClO

What product will be formed during the reaction?

  • A
    O
  • B
    CClO
  • C
    CHCH3Cl
  • D
    CCH3O
  • E
    CHCH3OCl

Q9:

Picric acid, also known as 2,4,6-trinitrophenol, is a benzene derivative containing several nitro groups. Given the chemical groups it contains, what primary use might picric acid have?

OHNO2NO2NO2
  • AFuel for cars
  • BFertilizers
  • CExplosives
  • DFood preservation
  • EPaints

Q10:

Consider the following reaction:

4H2+Δ,PNi?CHCH2

What product is produced?

  • AEthylcyclohexane
  • BCyclohexene
  • CEthylbenzene
  • DEthylcyclohexene
  • ECyclohexane

Which of the following represents the reaction?

  • AAlkylation
  • BDecomposition
  • CCombustion
  • DAddition
  • ESubstitution

This lesson includes 23 additional questions for subscribers.

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