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Group II Elements · CAPE Chemistry Unit 1

42 past-paper questions on Group II Elements, part of Chemistry of the Elements, from every CAPE Chemistry Unit 1 paper on Quelpr.

Practise Group II Elements
  1. 3(b)(ii)2 marks· CAPE Chemistry Unit 1 · 2021 · Paper 2Comment on the observation that calcium carbonate is more thermally stable than magnesium carbonate.
  2. 3(c)(i)2 marks· CAPE Chemistry Unit 1 · May/June 2025 · Paper 2State the trend in EACH of the following from beryllium to barium: Density [1 mark] Atomic radii [1 mark]
  3. 3(c)(ii)3 marks· CAPE Chemistry Unit 1 · May/June 2025 · Paper 2Account for the trend in the atomic radii in terms of the nuclear charge and the screening effect.
  4. 3(d)(i)4 marks· CAPE Chemistry Unit 1 · May/June 2025 · Paper 2Complete the table below by recording the observations that would be made when a 1 molar (M) solution of sodium sulfate is added to 0.1 mol dm^-3 of each of the Group II cations (Mg2+, Ca2+, Sr2+, Ba2+).
  5. 3(d)(ii)4 marks· CAPE Chemistry Unit 1 · May/June 2025 · Paper 2Account for the observations in (d)(i).
  6. 3(d)(iii)2 marks· CAPE Chemistry Unit 1 · May/June 2025 · Paper 2Write the ionic equation for the reaction between the barium ion, Ba2+ and the 1 M sodium sulfate solution.
  7. 3(e)4 marks· CAPE Chemistry Unit 1 · May/June 2025 · Paper 2For any TWO of the metals, complete the following table by naming ONE compound of the metal and the use of the compound.
  8. 2(d)(i)1 mark· Chemistry · Unit 1 Q2 2(d)(i)Magnesium filings were added to the remaining solution at 2(c). What observation is expected?
  9. 3(a)1 mark· Chemistry · Unit 1 Q3 3(a)Write the ionic equation of such an element, M, to show the formation of the ion present.
  10. 3(a)(i)4 marks· Chemistry · Unit 1 Q3 3(a)(i)Describe the reaction of barium metal with water. Include a balanced equation.
  11. 3(b)3 marks· Chemistry · Unit 1 Q3 3(b)Use the information in Table 1 to account for the differences in reactivity of the elements shown.
  12. 3(b)(i)2 marks· Chemistry · Unit 1 Q3 3(b)(i)Predict EACH of the following: Thermal stability of RaCO₃ relative to the other Group II carbonates
  13. 3(b)(ii)2 marks· Chemistry · Unit 1 Q3 3(b)(ii)Predict EACH of the following: Ease of reaction between radium and oxygen
  14. 3(c)2 marks· Chemistry · Unit 1 Q3 3(c)Magnesium oxide is used in the walls of industrial furnaces. Suggest an explanation for this usage.
  15. 3(c)(i)1 mark· Chemistry · Unit 1 Q3 3(c)(i)Comment on the solubility of the sulphate of radium in water.
  16. 3(c)(ii)3 marks· Chemistry · Unit 1 Q3 3(c)(ii)Write the balanced equation for the thermal decomposition of the nitrate of radium, Ra(NO3)2.
  17. 3(d)(i)3 marks· Chemistry · Unit 1 Q3 3(d)(i)State the steps that should be taken in the investigation of the differences in solubility of the sulphates of magnesium, calcium and barium.
  18. 3(d)(i)1 mark· Chemistry · Unit 1 Q3 3(d)(i)Identify the gas evolved on heating Compound A.
  19. 3(d)(ii)2 marks· Chemistry · Unit 1 Q3 3(d)(ii)List the names of the reagents that may be used in the investigation.
  20. 3(d)(ii)2 marks· Chemistry · Unit 1 Q3 3(d)(ii)Identify the TWO gases evolved on heating Compound B.
  21. 3(d)(iii)2 marks· Chemistry · Unit 1 Q3 3(d)(iii)Deduce the molecular formulae of the two calcium salts. Compound A: Compound B:
  22. 3(e)3 marks· Chemistry · Unit 1 Q3 3(e)List THREE uses of calcium carbonate.
  23. 4(b)(v)5 marks· Chemistry · Unit 1 Q4 4(b)(v)Write the s, p and d electronic configuration of Ca.
  24. 6(a)3 marks· Chemistry · Unit 1 Q6 6(a)The atomic and ionic radii of the Group II elements gradually increase down the group. Outline the reasons for this trend.
  25. 6(a)3 marks· Chemistry · Unit 1 Q6 6(a)Explain, using relevant data from Table 4, the trends in the atomic radius and ionization energy of the metals.
  26. 6(b)4 marks· Chemistry · Unit 1 Q6 6(b)Account for the variation in the melting points of the Group II elements from magnesium to barium.
  27. 6(b)(i)1 mark· Chemistry · Unit 1 Q6 6(b)(i)Describe the difference in the reactions of calcium and barium with water.
  28. 6(b)(i)2 marks· Chemistry · Unit 1 Q6 6(b)(i)Compare the reaction of the Group II elements, Be and Ca, with water.
  29. 6(b)(ii)5 marks· Chemistry · Unit 1 Q6 6(b)(ii)Account for the variation in atomic and ionic radii of the elements in Group II.
  30. 6(b)(ii)2 marks· Chemistry · Unit 1 Q6 6(b)(ii)Using the data from Table 4, explain the differences described in (b) (i).
  31. 6(b)(ii)3 marks· Chemistry · Unit 1 Q6 6(b)(ii)Describe what happens when barium is treated with water and write the equation for the reaction.
  32. 6(b)(iii)5 marks· Chemistry · Unit 1 Q6 6(b)(iii)Account for the variation in the solubility of the sulphate (VI) of the Group II elements.
  33. 6(c)5 marks· Chemistry · Unit 1 Q6 6(c)Account for the trend indicated in Table 4.
  34. 6(c)1 mark· Chemistry · Unit 1 Q6 6(c)State ONE use of calcium carbonate.
  35. 6(d)3 marks· Chemistry · Unit 1 Q6 6(d)Explain the variation in the thermal decomposition of the nitrates of the Group II elements.
  36. 6(d)(i)1 mark· Chemistry · Unit 1 Q6 6(d)(i)State how calcium oxide is used in agriculture.
  37. 6(d)(ii)1 mark· Chemistry · Unit 1 Q6 6(d)(ii)Write an ionic equation to represent the process involved in the use stated in (d) (i).
  38. 321 mark· Chemistry · Unit 1 Q32 32Which of the following properties increase on descending the Group II elements?
  39. 341 mark· Chemistry · Unit 1 Q34 34Which of the following factors, BEST explain why barium carbonate, BaCO₃, is more stable than magnesium carbonate, MgCO₃, when heated?
  40. 361 mark· Chemistry · Unit 1 Q36 36Which of the following pairs of properties increases on descending the Group II elements?
  41. 401 mark· Chemistry · Unit 1 Q40 40On heating CaSO₄ strongly, it decomposes into CaO(s) and SO₂(g). CaCO₃ decomposes at a much lower temperature than CaSO₄. Which of the following factors BEST explains the greater thermal stability of CaSO₄?
  42. 421 mark· Chemistry · Unit 1 Q42 42Which sulfate is MOST commonly used for X-rays?

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