IGCSEChemistryCambridge (CIE)Exam Questions8. The Periodic TableGroup Properties & Trends

Group Properties & Trends (Cambridge (CIE) IGCSE Chemistry): Exam Questions

Exam code: 0620 & 0971

3 hours44 questions

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Group Properties & Trends

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1
1 mark

Astatine is found below iodine in Group 7 of the periodic table.

What is its formula and state at room temperature?

 

Formula

State at room temperature 

 A

At

gas

 B

At

solid

 C

At2

liquid

 D

At2

solid

    Choose your answer

    2
    1 mark

    Which row describes the properties of fluorine?

     

    colour

    state at r.t.p

    more reactive than chlorine

    A

    yellow

    gas

    yes

    B

    green

    gas

    no

    C

    brown

    liquid

    no

    D

    brown

    gas

    yes

      Choose your answer

      3
      1 mark

      The transition elements are used extensively as catalysts. Which statement explains why they are such good catalysts?

      • Their oxidation state does not change.

      • They have a large surface area.

      • They can have variable oxidation states.

      • They form coloured compounds.

      Choose your answer

      4
      1 mark

      Which of the following observations does not apply to Group I elements?

      • They are relatively soft metals.

      • They corrode quickly when exposed to air.

      • They react very quickly with water releasing hydrogen gas

      • They produce acidic solutions in reaction with water.

      Choose your answer

      5
      1 mark

      Element X is an unreactive non-metal element. Where could this element be found on the Periodic table?

      • At the far left hand side

      • At the far right hand side

      • At the top of Group VI

      • At the bottom of Group VII

      Choose your answer

      1
      1 mark

      Which statement about the Alkali metals is correct?

      • Potassium is more dense than lithium.

      • Lithium has a higher density than sodium.

      • Potassium is less reactive than sodium.

      • The melting point of sodium is higher than lithium.

      Choose your answer

      2
      1 mark

      The reactivity of the halogens decreases moving down the group.

      Which statement explains this observation?

      • Decreasing distance between the nucleus and outer shell makes it easier for the atom to attract electrons.

      • Increasing distance between the nucleus and outer shell makes it easier for the atom to attract electrons.

      • Decreasing distance between the nucleus and outer shell makes it harder for the atom to attract electrons.

      • Increasing distance between the nucleus and outer shell makes it harder for the atom to attract electrons.

      Choose your answer

      3
      1 mark

      Which entry in the table matches the transition elements?

       

      density

      melting point

      from coloured compounds

      A

      high

      low

      no

      B

      high

      high

      yes

      C

      low

      low

      no

      D

      low

      high

      yes

        Choose your answer

        4
        1 mark

        Which row describes the properties of a typical noble gas?

         

        outer electrons

        atom or molecule

        boiling point

        A

        full

        atom

        very low

        B

        6

        molecule

        low

        C

        8

        atom

        very high

        D

        6

        molecule

        high

          Choose your answer

          5
          1 mark

          Astatine is a radioactive Group VII element which is extremely unstable, making it difficult to study. The physical and chemical properties of astatine can only be estimated.

          Which row most likely describes the properties of astatine?

           

          State

          Colour

          Reaction with KI (aq)

          A

          liquid

          yellow

          brown colour

          B

          solid

          green

          no reaction

          C

          gas

          dark brown

          brown colour

          D

          solid

          black

          no reaction

            Choose your answer

            6
            1 mark

            X, Y and Z are the halogens chlorine, bromine and iodine, but not necessarily in that order.

            When aqueous Y is added to an aqueous solution containing ions of Z, a brown solution is formed. When aqueous X is added to an aqueous solution containing ions of Z, no reaction occurs

            Which row correctly identifies halogens X, Y and Z?

            X

            Y

            Z

            A

            bromine

            chlorine

            iodine

            B

            iodine

            chlorine

            bromine

            C

            iodine

            bromine

            chlorine

            D

            chlorine

            iodine

            bromine

              Choose your answer

              1
              1 mark

              Bromine and rubidium react together to form the compound rubidium bromide. Which row correctly describes the formula and colour of rubidium bromide?

               

              formula

              colour

              A

              RbBr

              dark grey

              B

              RbBr2

              dark grey

              C

              RbBr

              white

              D

              RbBr2

              white

                Choose your answer

                2
                1 mark

                The reactivity of the alkali metals increases moving down the group. Which statement explains this observation?

                • Decreasing distance between the nucleus and outer shell makes it easier for the metals to lose their valence electrons.

                • Increasing distance between the nucleus and outer shell makes it harder for the metals to lose their valence electrons.

                • Increasing distance between the nucleus and outer shell makes it easier for the metals to lose their valence electrons.

                • Decreasing distance between the nucleus and outer shell makes it easier for the metals to gain their valence electrons.

                Choose your answer

                3
                1 mark

                Properties of four alkali metals labelled are shown in the table. Which one is placed lowest in the group?

                 

                melting point / oC

                density / g cm-3

                A

                39

                1.50

                B

                28.5

                1.93

                C

                98

                0.98

                D

                63.5

                0.86

                  Choose your answer

                  4
                  1 mark

                  Element Q is a halogen which reacts with aqueous potassium bromide, as shown in the reaction below:

                  Q2 + 2 KBr → 2 KQ + Br2

                  Which row describes element Q?

                   

                  More reactive than bromine

                  Greater Ar than bromine

                  A

                  ✓

                  ✓

                  B

                  ✓

                  cross times

                  C

                  cross times

                  ✓

                  D

                  cross times

                  cross times

                    Choose your answer

                    5
                    1 mark

                    A solution of a lithium halide and a halogen are mixed together. A reaction occurs and the mixture darkens in colour.

                    What is present in the reaction mixture?

                    • Bromine and lithium chloride

                    • Bromine and lithium fluoride

                    • Chlorine and lithium iodide

                    • Chlorine and lithium fluoride

                    Choose your answer

                    6
                    1 mark

                    Four statements about Group I metals are shown.

                    1. They share similar physical properties because they have the same number of electrons in their outer shell.

                    2. Reactivity increases down the group because the outer electron is further from the nucleus and is more easily lost.

                    3. Transition elements have higher melting points than Group I metals because the metallic bonding in Group I metals is weaker.

                    4. Group I metals form soluble acidic oxides which dissolve in water to form solutions with a high pH.

                    Which statements are correct?

                    • 1 and 2

                    • 2 and 3

                    • 2 and 4

                    • 3 and 4

                    Choose your answer