Syllabus Edition

First teaching 2014

Last exams 2024

|

Ionic & Covalent Bonding (DP IB Chemistry: SL)

Exam Questions

2 hours45 questions
11 mark

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

Which type of bond is formed in this reaction?

  • dipole-dipole forces

  • dative covalent bond

  • ionic bond

  • hydrogen bond

Did this page help you?

21 mark

Silver and iodine are both shiny crystalline solids.

Which forces exist between neighbouring iodine molecules in solid iodine and particles in solid silver?

 

iodine

silver

A

metallic bonds

covalent bonds

B

ionic bonds

metallic

C

covalent bonds

covalent bonds

D

London dispersion forces

metallic

    Did this page help you?

    31 mark

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

    • diamond

    • sodium chloride 

    • iron 

    • ice

    Did this page help you?

    41 mark

    Which of the following statements about ions and ionic compounds are true? 

    1.   Nitrogen can form a 3- ion
    2.   Potassium can form a cation
    3.   The formula for aluminium chloride is AlCl2
    • I and II only

    • I and III only

    • II and III only 

    • I, II and III

    Did this page help you?

    51 mark

    What is the correct formula for ammonium carbonate?

    • NH3CO3

    • NH4CO3

    • (NH4)2CO3

    • (NH4)3CO3

    Did this page help you?

    61 mark

    In acidic conditions, ammonia, NH3, reacts with a proton, H+, to form ammonium NH4+.

    Using the following key:

     bold times   N electron

    cross times   H electron

    Which of the following Dot & Cross diagrams correctly illustrate electron movement in this reaction.

    q6_4-1_easy_mcq_ib-chemistry-sl

      Did this page help you?

      71 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

      Did this page help you?

      81 mark

      Which of these atoms is most electronegative?

      • Cl

      • Mg

      • Br

      • Na

      Did this page help you?

      91 mark

      Which of the following compounds is not bonded ionically?

      • CaCO3

      • CH3OH

      • NaOH

      • BaCl2

      Did this page help you?

      101 mark

      “Electrostatic attraction between cations and delocalised electrons”

      Which of the following types of bonds does the statement best describe?

      • hydrogen

      • ionic

      • dipole-dipole

      • metallic

      Did this page help you?

      111 mark

      Which of the following materials only contain one type of bonding?

      • graphite

      • brass

      • ice

      • iodine crystals

      Did this page help you?

      121 mark

      Based on their Pauling electronegativity values, which atom is more likely to form a covalent bond with fluorine?

       

      atom

      Pauling value

       

      fluorine

      4.0

      A

      hydrogen

      2.2

      B

      copper

      1.9

      C

      magnesium

      1.3

      D

      potassium

      0.8

        Did this page help you?

        11 mark

        Which of the following statements about 2-methylpropan-2-ol, CH3C(CH3)(OH)CH3, are correct ? 

        1. The structure contains 16 bonding pair of electrons
        2. The O-C-C bond angle is 109.5 o
        3. The total number of electrons is 32
        • I and II only 

        • I and III only 

        • II and III only 

        • I, II and III

        Did this page help you?

        21 mark

        Which of the following molecules has the biggest overall dipole?

        q2_4-1_medium_mcq_ib-chemistry-hl

          Did this page help you?

          31 mark

           The electronegativity of four elements are given below 

          N = 3.0       H = 2.1       F = 4.0      P = 2.1      

           What is the correct order of polarity for the following compounds

          • PH3 < PF3 < NF3 < NH3

          • PH3 < PF3 < NH3 < NF3   

          • NF3 < NH3 < PH3 < PF3 

          • PH3 < NH3 < NF3 < PF3 

          Did this page help you?

          41 mark

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

          • calcium bromide, CaBr2

          • potassium carbonate, K2CO3

          • propanoic acid, CH3CH2COOH

          • dichloromethane, CH2Cl2

          Did this page help you?

          51 mark

          Which is the best description of ionic bonding?

          • electrostatic attraction between cations and electrons

          • electrostatic attraction between nuclei

          • electrostatic attraction between oppositely charged ions

          • electrostatic attraction of nuclei towards shared electrons in the bond between the nuclei

          Did this page help you?

          61 mark

          Below are four molecules. Which is the most polar molecule present?

          • CH3NH2

          • CH4

          • CCl4

          • CO2

          Did this page help you?

          71 mark

           Potassium bromide is an ionic compound. 

          When can potassium bromide conduct electricity?

           

          Solid

          Molten

          Aqueous

          A

          B

          C

          D

            Did this page help you?

            81 mark

            A periodic table is needed to answer this question.

            Of the four compounds listed below which one has the greatest ionic character?

            • HCl

            • MgS

            • CO2

            • CaO

            Did this page help you?

            91 mark

            What is the correct formula for aluminium sulfate?

            • Al3(SO4)2

            • Al(SO4)2

            • Al2(SO4)3

            • AlSO4

            Did this page help you?

            101 mark

            Aluminium iodide, Al2I6 is a dimer and exists as a solid at room temperature. When it is a vapour it can exist as an AlI3 molecule. 

            How many valence electrons are in an aluminium iodide, AlI3, molecule?

            • 22

            • 24

            • 26

            • 28

            Did this page help you?

            11 mark

            CHCl3 and Br2 are both liquids at room temperature due to the existence of dipoles.

            What dipoles are involved within CHCl3 and Br2?

             

            CHCl3

            Br2

            A

            induced dipoles only

            induced dipoles only

            B

            induced dipoles only

            induced dipoles and permanent dipoles

            C

            induced dipoles and permanent dipoles

            induced dipoles and permanent dipoles

            D

            induced dipoles and permanent dipoles

            induced dipoles only

              Did this page help you?

              21 mark

              What are the correct formulas for the following ions? 

               

              Phosphate

              Ammonium

              Ethanoate

              Nitrite

              A

              PO43-

              NH4+

              CH3COO+

              NO3-

              B

              PO32-

              NH4-

              CH3COO-

              NO2-

              C

              PO43-

              NH4+

              CH3COO-

              NO2-

              D

              PO42-

              NH4+

              CH3CH2COO-

              NO3-

                Did this page help you?

                31 mark

                What is the correct structure of the chlorite ion, ClO2- ?q3-4-1_hard_mcq_ib-chemistry-sl

                  Did this page help you?

                  41 mark

                  Which of the following statements about 2-chloropropene, CH2C(Cl)CH3 is not correct

                  • There are 3 lone pairs in the molecule

                  • There are 24 valence electrons in the molecule 

                  • The molecule does obey the octet rule

                  • The molecule does not obey the octet rule

                  Did this page help you?

                  51 mark

                  Which of the following structures do not obey the octet rule?

                  1. BeCl2
                  2. BF3
                  3. H2O
                  • I and II only

                  • I and III only

                  • II and III only

                  • I, II and III

                  Did this page help you?

                  61 mark

                  The periodic table may be needed to answer this question.

                  Which is the shortest bond length in the following gases?

                  • oxygen-oxygen in oxygen gas, O2

                  • carbon-carbon in ethyne gas, C2H2

                  • nitrogen-nitrogen in nitrogen gas, N2

                  • oxygen-oxygen in ozone gas, O3

                  Did this page help you?

                  71 mark

                  Which statement best describes the intramolecular bonding in a carbonate ion, CO32-?

                  • Only London forces

                  • Electrostatic attraction between pairs of electrons and positively charged nuclei

                  • Permanent dipole permanent dipole forces

                  • Electrostatic attraction between separate carbonate ions

                  Did this page help you?

                  81 mark

                  The number of electrons in the valence shell of elements X and Y are 5 and 7 respectively. What is the formula and type of compound formed from these elements?

                  • Covalent, XY3

                  • Ionic, XY3

                  • Covalent, X3Y

                  • Ionic, X3Y

                  Did this page help you?

                  91 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?

                  q9-4-1_hard_mcq_ib-chemistry-sl

                    Did this page help you?

                    101 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

                    Did this page help you?