Quelpr

Structure and Bonding · CSEC Chemistry

135 past-paper questions on Structure and Bonding, part of Principles of Chemistry, from every CSEC Chemistry paper on Quelpr.

Practise Structure and Bonding
  1. 1(b)4 marks· Chemistry Q1 1(b)Explain why the statement above is true.
  2. 1(b)(i)1 mark· Chemistry Q1 1(b)(i)Identify the forces that exist in a ‘molecular solid'.
  3. 1(b)(ii)2 marks· Chemistry Q1 1(b)(ii)Sodium chloride, another solid, has a higher melting and boiling point than stearic acid. Explain why this is so.
  4. 2(a)6 marks· Chemistry Q2 2(a)Complete Table 3 to show the structure and conductivity of EACH solid substance listed. The first one is done as an example.
  5. 2(a)(i)2 marks· Chemistry Q2 2(a)(i)Complete Table 3 by writing in the table, the structure of V and electrical conductivity of Q.
  6. 2(a)(ii)1 mark· Chemistry Q2 2(a)(ii)State the term used to describe different forms of an element such as the two forms of carbon, V and Q.
  7. 2(a)(ii)2 marks· Chemistry Q2 2(a)(ii)Using valence shells only, draw a diagram below to show the bonding which occurs in ICl.
  8. 2(a)(iii)3 marks· Chemistry Q2 2(a)(iii)Using dot cross diagrams, show the bonding in NaCl.
  9. 2(a)(iv)4 marks· Chemistry Q2 2(a)(iv)By comparing the forces of attraction between the NaCl particles and the I₂ molecules, explain why gentle heating is suitable for separating I₂ from a mixture of NaCl and I₂.
  10. 2(b)2 marks· Chemistry Q2 2(b)State TWO reasons why ICl is expected to have a low melting point.
  11. 2(b)4 marks· Chemistry Q2 2(b)Using appropriate diagrams, illustrate how the bonding in solid sodium chloride differs from that of diamond.
  12. 2(b)(i)2 marks· Chemistry Q2 2(b)(i)Explain the term 'ionic crystal'.
  13. 2(b)(i)2 marks· Chemistry Q2 2(b)(i)Identify the forms of carbon, V and Q.
  14. 2(b)(i)1 mark· Chemistry Q2 2(b)(i)Explain what is meant by the term 'allotrope'.
  15. 2(b)(ii)2 marks· Chemistry Q2 2(b)(ii)Figure 1 represents a partially drawn structure of Q. Complete the figure to show the bonding within and between the layers.
  16. 2(b)(ii)3 marks· Chemistry Q2 2(b)(ii)Using the symbols, filled circle for sodium ions and empty circle for chloride ions, fill in on the diagram in Figure 3, the positions occupied by these ions in the sodium chloride crystal.
  17. 2(b)(ii)3 marks· Chemistry Q2 2(b)(ii)With reference to the bonding in Fe, explain your answer to (b) (i).
  18. 2(b)(ii)2 marks· Chemistry Q2 2(b)(ii)Which of the two allotropes of carbon, diamond or graphite, conducts electricity? Explain your answer in terms of the structure and bonding of the two allotropes. Conducts electricity: Explanation:
  19. 2(b)(iii)4 marks· Chemistry Q2 2(b)(iii)State ONE use of Element V and ONE use of Element Q and indicate the property upon which EACH use is based.
  20. 2(c)1 mark· Chemistry Q2 2(c)The element sulfur, S, can exist as different allotropes. Define the term 'allotrope'.
  21. 2(c)3 marks· Chemistry Q2 2(c)What type of chemical bonding will be formed when A combines with B? Give a reason for your answer. Type of chemical bonding: _____. Reason: _____.
  22. 2(c)2 marks· Chemistry Q2 2(c)Draw the bonding diagram to show how magnesium combines with chlorine to form magnesium chloride.
  23. 2(c)4 marks· Chemistry Q2 2(c)Describe TWO tests that are performed in the laboratory to distinguish between an 'ionic solid' and a 'molecular solid'. Suggest how the results of the tests described can be used to distinguish between the two solids.
  24. 2(c)3 marks· Chemistry Q2 2(c)Sodium reacts with Element Z to form a compound. State whether this compound is ionic or covalent, and explain your answer.
  25. 2(c)2 marks· Chemistry Q2 2(c)Using dot-and-cross diagrams, show the bonding between Q and oxygen. [¹⁶₈O]
  26. 2(c)2 marks· Chemistry Q2 2(c)Using dot cross diagrams, show the bonding in iodine monochloride.
  27. 2(c)(i)1 mark· Chemistry Q2 2(c)(i)State the type of bonding that occurs between phosphorous and Element Y.
  28. 2(c)(i)3 marks· Chemistry Q2 2(c)(i)Explain why the melting point of sodium chloride is much higher than that of chlorine.
  29. 2(c)(ii)2 marks· Chemistry Q2 2(c)(ii)Based on your answer to (c) (i) above, describe the bonding in Element Y.
  30. 2(c)(ii)3 marks· Chemistry Q2 2(c)(ii)The crystal structures of magnesium oxide and sodium chloride are similar. Suggest why the melting point of magnesium oxide is much higher than that of sodium chloride.
  31. 2(c)(ii)3 marks· Chemistry Q2 2(c)(ii)Referring to only the electrons in the outer shells of the elements, sketch a diagram to show the bonding between phosphorous and Y.
  32. 2(c)(ii)2 marks· Chemistry Q2 2(c)(ii)What type of bond will be formed when X combines with oxygen? Give a reason for your answer.
  33. 2(c)(iii)2 marks· Chemistry Q2 2(c)(iii)Predict the type of bond that would be formed between X and oxygen. Give a reason for your answer.
  34. 2(c)(iii)3 marks· Chemistry Q2 2(c)(iii)Write the chemical formula for the compound formed from phosphorous and Y. Suggest TWO properties of this compound.
  35. 2(d)8 marks· Chemistry Q2 2(d)Based on your knowledge of the properties of compounds and isotopes, complete Table 3 below by writing the differences between the sets of compounds, and a suitable explanation in EACH case.
  36. 2(d)3 marks· Chemistry Q2 2(d)Based on the use and purpose of solid air fresheners, would you classify them as having simple molecular, giant covalent, or ionic lattices? Explain your answer.
  37. 2(d)(i)1 mark· Chemistry Q2 2(d)(i)Write the chemical formula of the compounds expected to be formed when atoms of element A combine with those of element B. Chemical formula: _____.
  38. 2(d)(i)1 mark· Chemistry Q2 2(d)(i)Is it LIKELY that calcium carbonate will conduct electricity in its solid state?
  39. 2(d)(ii)1 mark· Chemistry Q2 2(d)(ii)Write the chemical formula of the compounds expected to be formed when atoms of element A combine with each other. Chemical formula: _____.
  40. 2(d)(ii)2 marks· Chemistry Q2 2(d)(ii)Give a reason for your answer.
  41. 2(e)3 marks· Chemistry Q2 2(e)State THREE likely differences in the properties of the compound formed in (d)(i) when compared to the compound formed in (d)(ii). THREE differences in properties: _____.
  42. 2(e)(i)1 mark· Chemistry Q2 2(e)(i)State the type of bond that forms when sulfur reacts with chlorine.
  43. 2(e)(ii)3 marks· Chemistry Q2 2(e)(ii)Explain why the type of bond stated in (e)(i) is formed.
  44. 2(f)1 mark· Chemistry Q2 2(f)Write the formula of a compound which is formed when sulfur reacts with chlorine.
  45. 2(g)2 marks· Chemistry Q2 2(g)Draw a dot and cross diagram to show the bonding in the compound stated in (f).
  46. 3(b)(i)1 mark· Chemistry Q3 3(b)(i)What type of bonding would take place between A and B?
  47. 3(b)(ii)2 marks· Chemistry Q3 3(b)(ii)Give a reason for your answer in (b) (i) above.
  48. 3(b)(ii)2 marks· Chemistry Q3 3(b)(ii)Both NH4Cl and NH2Cl dissolve in water. Aqueous NH4Cl conducts electricity, but aqueous NH2Cl does not. What does this information suggest about the type of bonding in NH4Cl and in NH2Cl?
  49. 3(b)(iii)2 marks· Chemistry Q3 3(b)(iii)Use dot cross diagrams to illustrate the bonding between A and B.
  50. 3(b)(iii)2 marks· Chemistry Q3 3(b)(iii)Draw a dot-cross diagram to show the bonding in NH2Cl.
  51. 3(b)(iv)2 marks· Chemistry Q3 3(b)(iv)Suggest ONE reason why NH2Cl dissolves in water.
  52. 3(c)2 marks· Chemistry Q3 3(c)Describe the bonding expected in A.
  53. 3(d)(i)2 marks· Chemistry Q3 3(d)(i)Describe the bonding in graphite.
  54. 3(d)(ii)2 marks· Chemistry Q3 3(d)(ii)Graphite is used as a lubricant. How does this use relate to its structure and bonding?
  55. 4(a)4 marks· Chemistry Q4 4(a)Explain why magnesium conducts electricity when solid but magnesium iodide (MgI₂) only conducts electricity when molten or in solution.
  56. 4(a)6 marks· Chemistry Q4 4(a)Graphite and diamond are two allotropes of carbon. Define the term 'allotrope'. Illustrate your answer by drawing the lattice structures for both diamond and graphite.
  57. 4(a)(i)2 marks· Chemistry Q4 4(a)(i)Describe ONE simple test, including the observations, which could be used to distinguish between D and E.
  58. 4(a)(i)6 marks· Chemistry Q4 4(a)(i)With reference to the bonding, account for the differences in states and melting points of the oxides of magnesium and sulfur.
  59. 4(a)(ii)3 marks· Chemistry Q4 4(a)(ii)Sketch a unit cell of sodium chloride.
  60. 4(a)(iii)1 mark· Chemistry Q4 4(a)(iii)State the type of bonding that occurs in sodium chloride.
  61. 4(a)(iii)a)2 marks· Chemistry Q4 4(a)(iii)a)Describe the formation of the type of bond found in Element M.
  62. 4(a)(iii)b)2 marks· Chemistry Q4 4(a)(iii)b)Describe the formation of the type of bond found in the chloride of Element M.
  63. 4(b)(i)2 marks· Chemistry Q4 4(b)(i)Describe the bonding present in metals.
  64. 4(b)(i)1 mark· Chemistry Q4 4(b)(i)Identify TWO different elements in Table 3 which will combine by covalent bonding.
  65. 4(b)(i)5 marks· Chemistry Q4 4(b)(i)With reference to the bonding in graphite and M, and their relative positions in the Periodic Table, explain why graphite is used as an electrode and M is not.
  66. 4(b)(ii)2 marks· Chemistry Q4 4(b)(ii)Explain, in terms of bonding, why graphite conducts electricity but diamond does NOT conduct electricity.
  67. 4(b)(ii)4 marks· Chemistry Q4 4(b)(ii)Elements P and Q react together to form a compound. Deduce whether this compound is ionic or covalent. Use 'dot cross' diagrams to show the bonding in the compound formed and write its formula.
  68. 4(b)(ii)3 marks· Chemistry Q4 4(b)(ii)Draw dot-cross diagrams to illustrate the bonding in b(i) above.
  69. 4(b)(ii)2 marks· Chemistry Q4 4(b)(ii)Draw a diagram to show the bonding in the element chlorine.
  70. 4(b)(iii)2 marks· Chemistry Q4 4(b)(iii)Describe the type of bonding in sodium metal.
  71. 4(c)5 marks· Chemistry Q4 4(c)Sodium chloride and calcium oxide both have similar giant ionic crystalline structures with high melting points. However, the melting point of calcium oxide is higher than that of sodium chloride. Sketch the lattice…
  72. 4(c)5 marks· Chemistry Q4 4(c)Iodine and chlorine will combine to form iodine monochloride (ICl). Suggest the type of bonding which would occur in this compound. Give a reason for your answer and use dot-cross diagrams to illustrate your answer.
  73. 4(c)(i)6 marks· Chemistry Q4 4(c)(i)State the appropriate group and period to which EACH element, W and X, belongs. Hence, indicate the type of bonding that occurs between W and X and write the formula of the compound formed.
  74. 4(c)(ii)3 marks· Chemistry Q4 4(c)(ii)Suggest whether the resulting compound will dissolve in water. Explain your answer.
  75. 5(a)3 marks· Chemistry Q5 5(a)Identify the type of bonding present in methane. State a reason for your answer.
  76. 5(b)3 marks· Chemistry Q5 5(b)With reference to this figure, explain why diamond is used for cutting and graphite is not.
  77. 5(c)3 marks· Chemistry Q5 5(c)Use a suitable dot cross diagram to show the formation of the bond between B and oxygen.
  78. 5(c)(i)1 mark· Chemistry Q5 5(c)(i)Write the formula for sulphur (IV) oxide.
  79. 6(a)(i)2 marks· Chemistry Q6 6(a)(i)State ONE way in which diamond differs physically from graphite.
  80. 6(a)(ii)1 mark· Chemistry Q6 6(a)(ii)State ONE similarity between diamond and graphite other than they both contain carbon.
  81. 6(b)(i)1 mark· Chemistry Q6 6(b)(i)What does egg white look like when it is cooked?
  82. 6(b)(i)2 marks· Chemistry Q6 6(b)(i)Why is it important that glass does NOT crystallize as it cools?
  83. 6(b)(ii)1 mark· Chemistry Q6 6(b)(ii)What is the effect of heat on the protein of the egg?
  84. 6(b)(ii)3 marks· Chemistry Q6 6(b)(ii)Suggest how the bonding in SiO₂ affects what happens when glass melts. Explain why this is important for blowing and moulding glass.
  85. Q31 mark · multiple choice· CSEC Chemistry · January 2017 · Paper 1From the table below, which of the substances represented by the options, A, B, C and D, is MOST likely sodium chloride?
  86. Q131 mark · multiple choice· CSEC Chemistry · January 2017 · Paper 1Crystals of sodium chloride are BEST described as
  87. Q151 mark · multiple choice· CSEC Chemistry · January 2017 · Paper 1The diagram above represents the arrangement of atoms in
  88. Q321 mark · multiple choice· CSEC Chemistry · January 2017 · Paper 1Which of the diagrams illustrates bonding in chlorine?
  89. Q331 mark · multiple choice· CSEC Chemistry · January 2017 · Paper 1Which of the diagrams illustrates bonding in oxygen?
  90. Q91 mark · multiple choice· CSEC Chemistry · January 2018 · Paper 1Sodium chloride has a high melting point because
  91. Q111 mark · multiple choice· CSEC Chemistry · January 2018 · Paper 1The diagram above represents the arrangement of atoms in
  92. Q121 mark · multiple choice· CSEC Chemistry · January 2018 · Paper 1'Ionic bond formation' results from the
  93. Q201 mark · multiple choice· CSEC Chemistry · January 2018 · Paper 1Which of the following pairs of elements exhibit allotropy?
  94. Q31 mark · multiple choice· CSEC Chemistry · January 2019 · Paper 1From the table below, which of the substances represented by the options, A, B, C and D, is MOST likely sodium chloride? \begin{tabular}{|c|c|c|c|} \hline \multirow{2}{*}{Substance} &…
  95. Q61 mark · multiple choice· CSEC Chemistry · January 2019 · Paper 1Crystals of sodium chloride are BEST described as
  96. Q151 mark · multiple choice· CSEC Chemistry · January 2019 · Paper 1Which of the following compounds is covalent?
  97. Q291 mark · multiple choice· CSEC Chemistry · January 2019 · Paper 1When a metal atom becomes an ion, it
  98. Q321 mark · multiple choice· CSEC Chemistry · January 2019 · Paper 1Which of the diagrams illustrates bonding in chlorine?
  99. Q331 mark · multiple choice· CSEC Chemistry · January 2019 · Paper 1Which of the diagrams illustrates bonding in oxygen?
  100. 2(a)(i)1 mark· CSEC Chemistry · January 2021 · Paper 2Define the term 'allotrope'.
  101. 2(a)(ii)2 marks· CSEC Chemistry · January 2021 · Paper 2Identify the names of R and S.
  102. 2(a)(iii)1 mark· CSEC Chemistry · January 2021 · Paper 2State whether R is an ionic, simple covalent or giant covalent structure.
  103. 2(a)(iv)3 marks· CSEC Chemistry · January 2021 · Paper 2Sketch the structure of R using solid lines (—) for strong bonds and dotted lines (••••••) for weak bonds.
  104. 2(a)(v)2 marks· CSEC Chemistry · January 2021 · Paper 2Explain why R conducts electricity but S does not conduct electricity.
  105. 2(b)(i)1 mark· CSEC Chemistry · January 2021 · Paper 2Deduce the type of bonding present in Solid T.
  106. 2(b)(ii)1 mark· CSEC Chemistry · January 2021 · Paper 2State the appearance that Solid T is expected to have.
  107. Q101 mark · multiple choice· CSEC Chemistry · May/June 2010 · Paper 1The number of shared electron pairs in a methane molecule is
  108. Q111 mark · multiple choice· CSEC Chemistry · May/June 2010 · Paper 1Items 11-13 refer to the information in the table below. Match each item below with ONE of the options, A, B, C, D above. Each option may be used more than once, once or not at all. Simple molecular structure
  109. Q121 mark · multiple choice· CSEC Chemistry · May/June 2010 · Paper 1Items 11-13 refer to the information in the table below. Match each item below with ONE of the options, A, B, C, D above. Each option may be used more than once, once or not at all. Ionic structure
  110. Q141 mark · multiple choice· CSEC Chemistry · May/June 2010 · Paper 1Graphite can be used as a lubricant because of
  111. Q111 mark · multiple choice· CSEC Chemistry · May/June 2011 · Paper 1A metallic bond is formed when
  112. Q121 mark · multiple choice· CSEC Chemistry · May/June 2011 · Paper 1An example of a substance with a macromolecular structure is
  113. Q141 mark · multiple choice· CSEC Chemistry · May/June 2011 · Paper 1Graphite is used as an electrode because it
  114. Q151 mark · multiple choice· CSEC Chemistry · May/June 2011 · Paper 1Which of the following statements about covalent compounds are TRUE? I. They are mainly solids. II. They usually have low melting and boiling points. III. They are usually insoluble in water. IV. They contain only ions.
  115. Q101 mark · multiple choice· CSEC Chemistry · May/June 2013 · Paper 1Which of the following diagrams illustrates bonding in chlorine?
  116. Q121 mark · multiple choice· CSEC Chemistry · May/June 2013 · Paper 1An example of a substance with a giant molecular structure is
  117. Q131 mark · multiple choice· CSEC Chemistry · May/June 2013 · Paper 1Which of the following elements can exist in more than one form in the SAME state?
  118. Q141 mark · multiple choice· CSEC Chemistry · May/June 2013 · Paper 1Item 14 refers to the following information. Element | Atomic Number I | 3 II | 6 III | 17 IV | 18 Which TWO of the elements above when combined with each other form MAINLY ionic compounds?
  119. Q151 mark · multiple choice· CSEC Chemistry · May/June 2013 · Paper 1Which of the following features are usually true of covalent compounds? I. Insoluble in water II. Existing in the solid state III. Easily boiled and melted
  120. Q261 mark · multiple choice· CSEC Chemistry · May/June 2013 · Paper 1Which of the following changes to a metal atom happens when it becomes an ion?
  121. Q121 mark · multiple choice· CSEC Chemistry · May/June 2015 · Paper 1Which TWO of the elements above when combined with each other form MAINLY ionic compounds?
  122. Q131 mark · multiple choice· CSEC Chemistry · May/June 2015 · Paper 1Calcium chloride
  123. Q141 mark · multiple choice· CSEC Chemistry · May/June 2015 · Paper 1Starch
  124. Q21 mark · multiple choice· CSEC Chemistry · May/June 2016 · Paper 1The arrangements of electrons in atoms of X and Y are 2, 8, 5 and 2, 8, 6 respectively. Which of the following represents X and Y? | | X | Y | |---|---|---| | (A) | Metal | Non-metal | | (B) | Non-metal | Non-metal | |…
  125. Q31 mark · multiple choice· CSEC Chemistry · May/June 2016 · Paper 1Which of these elements forms a chloride that is ionic in nature?
  126. Q121 mark · multiple choice· CSEC Chemistry · May/June 2016 · Paper 1'Ionic bond formation' results from the
  127. Q141 mark · multiple choice· CSEC Chemistry · May/June 2016 · Paper 1Which of the following statements BEST describes the formation of a metallic bond?
  128. Q161 mark · multiple choice· CSEC Chemistry · May/June 2016 · Paper 1Covalent compounds can be formed between
  129. Q171 mark · multiple choice· CSEC Chemistry · May/June 2016 · Paper 1Which set of elements forms molecules which contain two atoms?
  130. Q21 mark · multiple choice· CSEC Chemistry · May/June 2017 · Paper 1Which of the elements forms a chloride that is ionic in nature?
  131. Q51 mark · multiple choice· CSEC Chemistry · May/June 2017 · Paper 1Which of the following elements does NOT form simple ions by gaining or losing electrons?
  132. Q121 mark · multiple choice· CSEC Chemistry · May/June 2017 · Paper 1Which of the following elements exhibits allotropy?
  133. Q151 mark · multiple choice· CSEC Chemistry · May/June 2017 · Paper 1Which of the following are physical properties of ionic substances? I. High melting points II. Soluble in organic solvents III. Good conductors of electricity in the liquid state
  134. Q181 mark · multiple choice· CSEC Chemistry · May/June 2017 · Paper 1Which of the above terms describes the structure of sodium chloride?
  135. Q191 mark · multiple choice· CSEC Chemistry · May/June 2017 · Paper 1Which of the above terms describes the structure of copper?

Related topics in Principles of Chemistry