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Types of Bonding & Properties (AQA AS Chemistry): Exam Questions

Exam code: 7404

4 hours44 questions

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Types of Bonding & Properties

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11 mark

Phosphane, PH3, can react with a hydrogen ion, H+, to form the phosphonium ion.

Which type of bond is formed in this reaction?

  • Permanent dipole-dipole

  • Hydrogen bond

  • Ionic bond

  • Dative covalent bond

Choose your answer

21 mark

Below are four solids. Which of these contains more than one kind of bonding?

  • Ice

  • Sodium chloride

  • Magnesium

  • Diamond

Choose your answer

31 mark

Which of these atoms is most electronegative?

  • Br

  • Mg

  • Cl

  • Li

Choose your answer

41 mark

Which of the following compounds is not bonded ionically?

  • CH3OH

  • MgCO3

  • LiOH

  • BaCl2

Choose your answer

51 mark

What is the correct formula for ammonium carbonate?

  • NH3CO3

  • NH4CO3

  • (NH4)2CO3

  • (NH4)3CO3

Choose your answer

61 mark

Which statement about the electrical conductivity of sodium sulfide is correct?

  • It conducts when solid and liquid

  • It conducts when solid but not when liquid

  • It conducts when liquid but not when solid

  • It does not conduct when liquid or solid

Choose your answer

71 mark

Which of the following contains a dative covalent bond?

  • N2

  • NH3

  • CN-

  • NH4+

Choose your answer

81 mark

Magnesium oxide has a very high melting temperature.

Which of the following is the best description of its structure and bonding?

  • Giant ionic

  • Giant metallic

  • Macromolecular

  • Simple molecular

Choose your answer

91 mark

Graphite has a structure containing layers of carbon atoms in hexagonal rings.

Why is graphite a good conductor of electricity?

  • It has delocalised ions which can move and carry charge.

  • It has delocalised electrons which are mobile.

  • There are only weak London forces between the layers.

  • Each carbon atom in the layers has only three covalent bonds.

Choose your answer

101 mark

Which crystal structure does not conduct electricity when solid, has a high melting point and can conduct electricity when molten?

  • Giant metallic

  • Giant ionic

  • Macromolecular

  • Simple molecular

Choose your answer

11 mark

Which of the following compounds has both covalent and ionic bonds?

  • calcium chloride, CaCl2

  • lithium carbonate, Li2CO3

  • butanoic acid, CH3CH2CH2COOH

  • dibromomethane, CH2Br2

Choose your answer

21 mark

Which of the following statements about graphite are correct?

 

The carbon atoms are joined together by three covalent bonds

Graphite contains delocalised electrons

The C-C-C bond angle is 109.5degree

A

✓

✓

⨯

B

✓

⨯

✓

C

⨯

✓

✓

D

⨯

⨯

✓

    Choose your answer

    31 mark

    Of the four structures listed below which one has the highest melting point?

    • Mg

    • NaO

    • O2

    • C (graphite)

    Choose your answer

    41 mark

    Which statement below shows the correct information about diamond and graphite?

    • diamond and graphite both conduct electricity due to delocalised electrons in their structure

    • the bond angles in the two structures are not the same

    • diamond is macromolecular and graphite is simple molecular

    • all the valence electrons are covalently bonded in both graphite and diamond

    Choose your answer

    51 mark

    Which of the following metals would have the highest melting point?

    • Na

    • Mg

    • K

    • Al

    Choose your answer

    61 mark

    A table of four substances and their physical properties is shown.

    Substance

    electrical conductivity of aqueous solution

    electrical conductivity of molten substance

    electrical conductivity of solid

    melting point

    / °C

    boiling point

    / °C

    Diamond

    NaCl

    Mg

    I2

    insoluble

    insoluble

    n/a 

    poor

    poor

    good

    good

    poor

    poor

    good 

    good

    poor

    3550

    801

    150

    114

    4830

    1465

    310

    183

    Which substances have the correct properties?  

    • Diamond and I2

    • NaCl

    • I2 and Mg

    • Mg

    Choose your answer

    71 mark

    The melting points of elements in period 3 are shown below.

    26

    Why does sulfur have a higher melting point than phosphorus?

    • Sulfur has a giant macromolecular structure

    • Sulfur has more electrons so greater permanent dipole-dipole interactions

    • Sulfur has more electrons so greater van der Waals forces

    • Sulfur has a greater nuclear charge

    Choose your answer

    81 mark

    Sodium chloride is an ionic compound.

    When can sodium chloride conduct electricity? 

     

    Solid 

    Molten

    Aqueous

    A

    ✓

    ✓

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    B

    ✓

    ⨯

    ✓

    C

    ⨯

    ✓

    ✓

    D

    ⨯

    ⨯

    ✓

      Choose your answer

      91 mark

      Element X forms a carbonate with the formula X2CO3.

      Which of these could represent the shorthand electron configuration of an atom of X?

      • [Ne] 3s1

      • [Ne] 3s2

      • [Ne] 3s1 3p2

      • [Ne]

      Choose your answer

      11 mark

      In which series of compounds does covalent character increase when going from left to right?

      • KI, KBr, KCl

      • NaI, KI, RbI

      • NaCl, MgCl2, AlCl3

      • SO2, P4O10, SiO2

      Choose your answer

      21 mark

      Which is the shortest bond length in the following gases?

      • Oxygen-oxygen in oxygen gas, O2

      • Nitrogen-nitrogen in nitrogen gas, N2

      • Carbon-carbon in ethyne gas, C2H2

      • Oxygen-oxygen in ozone gas, O3

      Choose your answer

      31 mark

      Sodium and magnesium are both period 3 elements.

      Compared to sodium, why is magnesium less reactive?

       

      Magnesium has a smaller atomic radius

      Magnesium has a larger nuclear charge

      Stronger nuclear attraction for electrons

      A

      ✓

      ✓

      ✓

      B

      ✓

      ⨯

      ⨯

      C

      ⨯

      ⨯

      ✓

      D

      ✓

      ✓

      ⨯

        Choose your answer

        41 mark

        Which compounds have an ionic lattice structure in the solid state?

         

        Silicon dioxide

        Ammonium sulfate

        Potassium iodide

        A

        ✓

        ✓

        ⨯

        B

        ✓

        ⨯

        ✓

        C

        ⨯

        ✓

        ✓

        D

        ⨯

        ⨯

        ✓

          Choose your answer

          51 mark

          Element D forms a phosphate with formula DPO4.

          Which of these could represent the electronic configuration of an atom of D?

          • [Ne]3s1

          • [Ne]3s2

          • [Ne]3s23p1

          • [Ne]3s13p2

          Choose your answer

          61 mark

          Which of the following molecules does not contain a double bond?

          • CO2

          • C2Cl4

          • C2H2Cl2

          • C3F8

          Choose your answer

          71 mark

          Which of the following reactions involves the donation of an electron pair?

          • ½Br2 + I- → Br- +½I2

          • 2Na+ + O2- → Na2O

          • C + O2 → CO2

          • BF3 + F- → BF4-

          Choose your answer

          81 mark

          The nitrate (V) ion, NO3-, is a polyatomic ion, bonded by covalent bonds. 

          Which of the following shows the correct displayed formula for the nitrate ion?

          22

            Choose your answer

            91 mark

            Which of the following does not contain a triple bond?

            • SO42-

            • CO

            • N2

            • CN-

            Choose your answer

            101 mark

            What properties best describe the structure and bonding present in hydrogen fluoride?

             

            Localised covalent bonds

            High solubility in polar solvents

            H-F bond has the lowest bond enthalpy out of Group 7 hydrides

            Highest boiling point out of Group 7 hydrides

            A

            ⨯

            ✓

            ⨯

            ✓

            B

            ✓

            ✓

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            ✓

            C

            ⨯

            ✓

            ✓

            ✓

            D

            ⨯

            ⨯

            ✓

            ⨯

              Choose your answer