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DP IB Chemistry: SL

Topic Questions

Home / IB / Chemistry: SL / DP / Topic Questions / 10. Organic Chemistry / 10.2 Functional Group Chemistry / Structured Questions: Paper 2


10.2 Functional Group Chemistry

Question 1a

Marks: 1
a)
A reaction scheme for propene is shown below.
10-2-ib-sl-sq-easy-q1a-reaction-scheme-of-propene

   State the condensed structural formula of propene.

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    Key Concepts
    Representing Formulae

    Question 1b

    Marks: 3
    b)
    State the IUPAC names for compounds A, B and C shown in the reaction scheme in part (a)

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      Question 1c

      Marks: 3
      c)
      Propene will also react to form an alcohol. State the reagents and conditions required for the formation of an alcohol from propene. 

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        Key Concepts
        Hydration of alkenes

        Question 1d

        Marks: 1
        d)
        State the colour change when compound B is formed from propene. 

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          Question 1e

          Marks: 2
          e)
          Propene can form polypropene. Draw the repeating unit that will be formed via the addition polymerisation of propene. 

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            Key Concepts
            Polymers

            Question 2a

            Marks: 1
            a)

            There are three steps to the free radical substitution mechanism. When ethane and chlorine react in the presence of UV light, chloroethane is produced. Write the equation for the initiation step.

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              Question 2b

              Marks: 2
              b)
              Write two equations for the propagation steps for the reaction outlined in part (a).
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                Question 2c

                Marks: 1
                c)
                Write the equation using structural formulae for the termination reaction between two CH3CH2 free radicals.
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                  Question 2d

                  Marks: 1
                  d)
                  State the type of bond breaking that occurs in the initiation reaction to produce free radicals. 

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                    Question 3a

                    Marks: 4
                    a)
                    State the balanced symbol equations for the complete combustion of propane and propanol. 
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                      Question 3b

                      Marks: 3
                      b)
                      The following reaction profile shown produces propanoic acid after three steps.

                                        Step 1                   Step 2                     Step 3

                      Propene         →         Propan-1-ol         →          Propanal       →     Propanoic acid

                      State the reagents and conditions that can be used for steps 2 and 3. 
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                        Question 3c

                        Marks: 1
                        c)
                        Using your answer to part (b) to state the colour change for step 2.

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                          Key Concepts
                          Distillation & reflux

                          Question 3d

                          Marks: 2
                          d)
                          Explain why 2-methylpropan-2-ol will not form a carboxylic acid. 

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                            Question 4a

                            Marks: 2
                            a)
                            Benzene undergoes substitution reactions. State the equation for the reaction of benzene with nitric acid to produce nitrobenzene and water.

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                              Key Concepts
                              Reactions of benzene

                              Question 4b

                              Marks: 2
                              b)
                              The structure of methylbenzene is shown below.
                              a2c33069-43fc-46b0-af04-465fc1e6e6d1
                              Draw the structures of the two isomers of choromethylbenzene formed from the reaction of methyl benzene and Cl2 in the presence of AlCl3

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                                Key Concepts
                                Reactions of benzene

                                Question 4c

                                Marks: 1
                                c)
                                State the type of reaction that benzene will typically undergo. 

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                                  Key Concepts
                                  Reactions of benzene

                                  Question 5a

                                  Marks: 2
                                  a)
                                  The structure of but-1-ene is shown below. But-1-ene IB SL SQ 10.2 E Q5a
                                  Draw and state the name of the secondary halogenoalkane formed when but-1-ene reacts with HCl. 

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                                    Question 5b

                                    Marks: 2
                                    b)
                                    Explain why halogenoalaknes are more reactive than alkanes.

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                                      Question 5c

                                      Marks: 3
                                      c)
                                      State the reagents and conditions required for the formation of propan-1-ol from 1-bromopropane. 

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                                        Question 5d

                                        Marks: 1
                                        d)
                                        The type of reaction outlined in part (c) is nucleophilic substitution. State the meaning of the term nucleophile

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