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First Row Transition Elements · CAPE Chemistry Unit 1

87 past-paper questions on First Row Transition Elements, part of Chemistry of the Elements, from every CAPE Chemistry Unit 1 paper on Quelpr.

Practise First Row Transition Elements
  1. 9(a)5 marks· CAPE Chemistry Unit 1 · 2005 · Paper 2State the fundamental principles upon which ultraviolet/visible (UV/Vis) spectroscopy is based.
  2. 9(b)(i)1 mark· CAPE Chemistry Unit 1 · 2005 · Paper 2State the observation when 1,10-phenanthroline is added to the reduced iron(II) solution.
  3. 9(b)(ii)3 marks· CAPE Chemistry Unit 1 · 2005 · Paper 2Explain the properties of 1,10-phenanthroline that make it suitable for quantitative UV/Vis analysis of iron(II).
  4. 9(b)(iii)1 mark· CAPE Chemistry Unit 1 · 2005 · Paper 2Suggest why a wavelength of 510 nm is chosen for the spectrophotometric measurements.
  5. 9(c)(ii)3 marks· CAPE Chemistry Unit 1 · 2005 · Paper 2Use the Beer-Lambert law to calculate the molar absorptivity of the iron(II) complex.
  6. 3(a)(i)5 marks· CAPE Chemistry Unit 1 · 2021 · Paper 2Complete Table 2 by inserting the missing electronic structure (ES) and the oxidation state (OS) for EACH element listed.
  7. 3(a)(ii)4 marks· CAPE Chemistry Unit 1 · 2021 · Paper 2Explain the difference between the trend of the first ionization energy for the Group II elements and the first row transition elements.
  8. 3(b)(i)4 marks· CAPE Chemistry Unit 1 · 2021 · Paper 2Account for the difference in oxidation state between vanadium and calcium.
  9. 3(c)(i)3 marks· CAPE Chemistry Unit 1 · 2021 · Paper 2Explain the observation in terms of the stability constant of the complex ion formed.
  10. 3(c)(ii)2 marks· CAPE Chemistry Unit 1 · 2021 · Paper 2Write a balanced equation for the reaction occurring when concentrated HCl is added to a pink solution of cobalt(II) chloride.
  11. 3(d)(i)5 marks· CAPE Chemistry Unit 1 · 2021 · Paper 2Complete Table 3 to show the observations expected for EACH of the tests on ammonium vanadate.
  12. 3(d)(ii)5 marks· CAPE Chemistry Unit 1 · 2021 · Paper 2Write the formula of the species formed which is responsible for EACH colour observed in (d)(i) in Table 3.
  13. 3(d)(i)1 mark· CAPE Chemistry Unit 1 · May/June 2019 · Paper 2Define the term 'transition element'.
  14. 3(d)(ii)3 marks· CAPE Chemistry Unit 1 · May/June 2019 · Paper 2List THREE characteristic properties of transition elements other than forming coloured compounds.
  15. 3(d)(iii)2 marks· CAPE Chemistry Unit 1 · May/June 2019 · Paper 2State the colour of the ions B and C.
  16. 3(d)(iv)5 marks· CAPE Chemistry Unit 1 · May/June 2019 · Paper 2Account for the fact that unlike Cu2+ compounds, Zn2+ compounds are normally colourless.
  17. 3(d)4 marks· CAPE Chemistry Unit 1 · May/June 2022 · Paper 2Discuss the values of the physical properties (melting point, density, atomic radius) shown in Table 5 in terms of the structure and bonding of the elements calcium and iron.
  18. 3(e)(i)4 marks· CAPE Chemistry Unit 1 · May/June 2022 · Paper 2Insert arrows into EACH of the boxes in Figure 1 to show the electronic configuration (3d and 4s orbitals) of Fe3+, Mn2+, Cr, and Ni2+.
  19. 3(e)(ii)5 marks· CAPE Chemistry Unit 1 · May/June 2022 · Paper 2Considering the electronic configurations given for Cu+ (1s2 2s2 2p6 3s2 3p6 3d10) and Cu2+ (1s2 2s2 2p6 3s2 3p6 3d9), discuss the fact that some copper(I) compounds are colourless but most copper(II) compounds are…
  20. 3(b)(i)2 marks· CAPE Chemistry Unit 1 · May/June 2024 · Paper 2Define the term 'ligand'.
  21. 3(b)(ii)1 mark· CAPE Chemistry Unit 1 · May/June 2024 · Paper 2Write the formula of the complex formed between X^3+ and six hydroxide ligands.
  22. 3(b)(iii)1 mark· CAPE Chemistry Unit 1 · May/June 2024 · Paper 2State the shape of the complex formed.
  23. 3(b)(iv)2 marks· CAPE Chemistry Unit 1 · May/June 2024 · Paper 2Using a suitable diagram, illustrate your answer in (b)(iii).
  24. 3(b)(v)2 marks· CAPE Chemistry Unit 1 · May/June 2024 · Paper 2State what is meant by the term 'coordination number', in reference to a complex ion.
  25. 3(c)(i)2 marks· CAPE Chemistry Unit 1 · May/June 2024 · Paper 2State the expected observation for the addition of concentrated hydrochloric acid to aqueous copper(II) sulfate.
  26. 3(c)(ii)3 marks· CAPE Chemistry Unit 1 · May/June 2024 · Paper 2Write an equation for the reaction which occurs between aqueous copper(II) ions and concentrated hydrochloric acid, and identify the species with the higher Kstab (stability constant) value.
  27. 3(a)(i)4 marks· CAPE Chemistry Unit 1 · May/June 2026 · Paper 2List FOUR properties of transition metals.
  28. 3(a)(ii)4 marks· CAPE Chemistry Unit 1 · May/June 2026 · Paper 2Explain the relatively small changes which occur across the series of transition elements in the first ionization energy, Delta H_1E, shown in Table 3.
  29. 3(a)(iii)3 marks· CAPE Chemistry Unit 1 · May/June 2026 · Paper 2Compare the atomic radius of calcium with those of the transition elements.
  30. 3(a)(iv)2 marks· CAPE Chemistry Unit 1 · May/June 2026 · Paper 2Write the electronic configuration of Cu and Cu2+.
  31. 1(b)(i)1 mark· Chemistry · Unit 1 Q1 1(b)(i)Identify the ion responsible for the green colour.
  32. 3(a)3 marks· Chemistry · Unit 1 Q3 3(a)State THREE OTHER characteristic properties of transition elements.
  33. 3(a)5 marks· Chemistry · Unit 1 Q3 3(a)Insert arrows in the relevant boxes in Figure 2 to show the electronic configuration of the species.
  34. 3(a)5 marks· Chemistry · Unit 1 Q3 3(a)Record in Table 1 the observation expected for EACH of the tests below.
  35. 3(a)2 marks· Chemistry · Unit 1 Q3 3(a)Define the term 'transition element'.
  36. 3(a)(i)5 marks· Chemistry · Unit 1 Q3 3(a)(i)Insert arrows in EACH of the boxes in Figure 2 to show the electronic configuration of the species.
  37. 3(a)(ii)a)3 marks· Chemistry · Unit 1 Q3 3(a)(ii)a)Explain EACH of the following statements in terms of electronic configurations. Fe²⁺ ions are readily oxidized to Fe³⁺ ions.
  38. 3(a)(ii)b)1 mark· Chemistry · Unit 1 Q3 3(a)(ii)b)Explain EACH of the following statements in terms of electronic configurations. Mn²⁺ ions are NOT readily oxidized to Mn³⁺ ions.
  39. 3(a)(ii)c)1 mark· Chemistry · Unit 1 Q3 3(a)(ii)c)Explain EACH of the following statements in terms of electronic configurations. Zn is NOT considered to be a transition element.
  40. 3(b)2 marks· Chemistry · Unit 1 Q3 3(b)Use the distribution in the d-orbitals to account for colour in transition metal ions.
  41. 3(b)(i)1 mark· Chemistry · Unit 1 Q3 3(b)(i)Deduce the oxidation number of the platinum atom.
  42. 3(b)(i)2 marks· Chemistry · Unit 1 Q3 3(b)(i)What are the colours of aqueous Co²⁺?
  43. 3(b)(i)4 marks· Chemistry · Unit 1 Q3 3(b)(i)Complete the table below by writing the colour of the species labelled A, B, C and D.
  44. 3(b)(ii)2 marks· Chemistry · Unit 1 Q3 3(b)(ii)What are the colours of aqueous Mn²⁺?
  45. 3(b)(ii)1 mark· Chemistry · Unit 1 Q3 3(b)(ii)Suggest the shape of the cisplatin molecule.
  46. 3(b)(ii)1 mark· Chemistry · Unit 1 Q3 3(b)(ii)State the reagent used for the conversion in Reaction 1 (D → B).
  47. 3(c)2 marks· Chemistry · Unit 1 Q3 3(c)Account for the observation that Zn2+ compounds are normally colourless.
  48. 3(c)1 mark· Chemistry · Unit 1 Q3 3(c)If aqueous Co²⁺ is heated to dryness, what colour is observed?
  49. 3(c)4 marks· Chemistry · Unit 1 Q3 3(c)Give an explanation for the observation stated above in terms of the stability constant of the complex ion formed, and write a balanced equation for the reaction.
  50. 3(c)2 marks· Chemistry · Unit 1 Q3 3(c)Explain how an aqueous solution of iron(II) sulphate functions as an antidote for cyanide poisoning.
  51. 3(c)(i)a)2 marks· Chemistry · Unit 1 Q3 3(c)(i)a)Complete the diagrams below by inserting arrows to show the electronic configuration of Fe²⁺ ion.
  52. 3(c)(i)b)2 marks· Chemistry · Unit 1 Q3 3(c)(i)b)Complete the diagrams below by inserting arrows to show the electronic configuration of Mn²⁺ ion.
  53. 3(c)(ii)2 marks· Chemistry · Unit 1 Q3 3(c)(ii)Use the information in (c)(i)b) to explain why Mn²⁺ ions resist oxidation to Mn³⁺ ions.
  54. 3(d)1 mark· Chemistry · Unit 1 Q3 3(d)Explain what is meant by the term 'ligand'.
  55. 3(d)(i)3 marks· Chemistry · Unit 1 Q3 3(d)(i)List the colour of the following ions: B, C, D.
  56. 3(d)(ii)2 marks· Chemistry · Unit 1 Q3 3(d)(ii)Sketch the arrangement of bonds in the ion labelled C.
  57. 3(e)(i)2 marks· Chemistry · Unit 1 Q3 3(e)(i)Write the formula of the species formed, and describe what occurs when ammonia solution is added to aqueous copper (II) sulphate (IV).
  58. 3(e)(ii)2 marks· Chemistry · Unit 1 Q3 3(e)(ii)Write the formula of the species formed, and describe what occurs when an excess of ammonia solution is added to (e)(i) on page 6.
  59. 3(f)4 marks· Chemistry · Unit 1 Q3 3(f)Use the ligand exchange theory to account for this occurrence.
  60. 4(b)(i)5 marks· Chemistry · Unit 1 Q4 4(b)(i)Write the s, p and d electronic configuration of Cu.
  61. 4(b)(iii)5 marks· Chemistry · Unit 1 Q4 4(b)(iii)Write the s, p and d electronic configuration of Mn²⁺.
  62. 4(b)(iv)5 marks· Chemistry · Unit 1 Q4 4(b)(iv)Write the s, p and d electronic configuration of Fe³⁺.
  63. 4(c)(ii)1 mark· Chemistry · Unit 1 Q4 4(c)(ii)Using s, p, d notation, write the electronic configuration of 24Cr.
  64. 6(a)4 marks· Chemistry · Unit 1 Q6 6(a)List FOUR properties of transition metals.
  65. 6(a)2 marks· Chemistry · Unit 1 Q6 6(a)The atomic radii across the first row of transition elements show a gradual decrease. Outline the reasons for this trend.
  66. 6(a)(i)4 marks· Chemistry · Unit 1 Q6 6(a)(i)Define the term 'ligand' and identify two ligands in the haemoglobin structures in Figure 1.
  67. 6(b)(i)1 mark· Chemistry · Unit 1 Q6 6(b)(i)Write the electronic configuration using the s, p and d orbitals of the titanium ion.
  68. 6(b)(i)3 marks· Chemistry · Unit 1 Q6 6(b)(i)State the FULL electronic configuration for the ions, Ti³⁺; Fe²⁺; Cr³⁺.
  69. 6(b)(ii)4 marks· Chemistry · Unit 1 Q6 6(b)(ii)Explain the colour of the aqueous solution.
  70. 6(b)(ii)2 marks· Chemistry · Unit 1 Q6 6(b)(ii)Explain, in terms of electronic configuration, why iron(II) is readily converted to iron(III).
  71. 6(c)4 marks· Chemistry · Unit 1 Q6 6(c)Account for the origin of colour in transition metal complexes.
  72. 6(c)(i)2 marks· Chemistry · Unit 1 Q6 6(c)(i)State the name of the shape for EACH of the complex ions.
  73. 6(c)(i)1 mark· Chemistry · Unit 1 Q6 6(c)(i)Describe what would be observed when concentrated hydrochloric acid is slowly added to an aqueous solution of Co²⁺.
  74. 6(c)(ii)2 marks· Chemistry · Unit 1 Q6 6(c)(ii)Write an ionic equation to represent the observation in (c) (i).
  75. 6(c)(ii)1 mark· Chemistry · Unit 1 Q6 6(c)(ii)State the name of the shape for a complex ion of the formula [ML₄]ⁿ⁺ where M is the central metal and L represents the ligand.
  76. 6(c)(iii)3 marks· Chemistry · Unit 1 Q6 6(c)(iii)Using the concept of stability constant, explain the changes observed in (c) (ii).
  77. 6(d)2 marks· Chemistry · Unit 1 Q6 6(d)Transition metals have higher melting points than metals such as calcium in the s-block of the periodic table. Suggest TWO reasons for this.
  78. 6(d)5 marks· Chemistry · Unit 1 Q6 6(d)Explain carefully how the colour is produced.
  79. 101 mark· Chemistry · Unit 1 Q10 10The shape of the complex ion [Co(NH₃)₆]³⁺ is
  80. 221 mark· Chemistry · Unit 1 Q22 22Copper can catalyse this reaction due to its ability to
  81. 361 mark· Chemistry · Unit 1 Q36 36Which of the following properties does NOT describe transition elements?
  82. 381 mark· Chemistry · Unit 1 Q38 38The sharp increase from copper (Cu) to zinc (Zn) is caused by filled
  83. 401 mark· Chemistry · Unit 1 Q40 40Which of the following properties does NOT describe transition elements?
  84. 411 mark· Chemistry · Unit 1 Q41 41The sharp increase from copper (Cu) to zinc (Zn) is caused by filled
  85. 421 mark· Chemistry · Unit 1 Q42 42Which of the elements in the table can be classified as transition?
  86. 431 mark· Chemistry · Unit 1 Q43 43Elements can be classified by their response to externally applied magnetic fields as diamagnetic, paramagnetic and non-magnetic. Which of the following elements is considered to have a high degree of para-magnetism?
  87. 431 mark· Chemistry · Unit 1 Q43 43Which of the following elements is considered to have a high degree of paramagnetism?

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