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Group IV Elements · CAPE Chemistry Unit 1

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

  1. 3(a)(iv)4 marks· CAPE Chemistry Unit 1 · May/June 2024 · Paper 2With the aid of an equation, describe the reaction of silicon chloride in water.
  2. 3(a)(i)4 marks· CAPE Chemistry Unit 1 · May/June 2025 · Paper 2Describe the trend in EACH of the following: Electrical conductivity from silicon to lead [2 marks] The melting point from silicon to lead [2 marks]
  3. 3(a)(ii)4 marks· CAPE Chemistry Unit 1 · May/June 2025 · Paper 2Account for the variation in melting points from C(d) to Sn, in terms of structure and bonding.
  4. 3(b)(i)1 mark· CAPE Chemistry Unit 1 · May/June 2025 · Paper 2Describe the reaction of lead (IV) chloride with water.
  5. 3(b)(ii)2 marks· CAPE Chemistry Unit 1 · May/June 2025 · Paper 2Write a balanced equation for the reaction described in (b)(i).
  6. 3(a)4 marks· Chemistry · Unit 1 Q3 3(a)Complete Table 3 for the oxides of carbon and lead.
  7. 3(b)4 marks· Chemistry · Unit 1 Q3 3(b)Explain the relative stabilities of the +2 oxidation states of the oxides of carbon and lead.
  8. 3(c)(i)1 mark· Chemistry · Unit 1 Q3 3(c)(i)Describe what should be observed when concentrated sodium hydroxide is added to solid lead(IV) oxide
  9. 3(c)(ii)2 marks· Chemistry · Unit 1 Q3 3(c)(ii)Describe what should be observed when concentrated hydrochloric acid is added to solid lead(IV) oxide.
  10. 3(d)3 marks· Chemistry · Unit 1 Q3 3(d)Complete Table 2 to show the acid/base character of the oxides of Group IV elements in the +2 oxidation state.
  11. 6(a)4 marks· Chemistry · Unit 1 Q6 6(a)Copy and complete the information in Table 2 regarding some physical properties of elements in Group IV of the Periodic Table.
  12. 6(b)4 marks· Chemistry · Unit 1 Q6 6(b)Use a knowledge of structure and bonding to explain these trends.
  13. 6(c)5 marks· Chemistry · Unit 1 Q6 6(c)Explain the variation in the acid/base character of the oxides of oxidation state +2 of the elements of Group IV.
  14. 6(c)(i)1 mark· Chemistry · Unit 1 Q6 6(c)(i)Account for the following observation, using the bonding present in the compounds: Silicon tetrachloride is a volatile liquid at room temperature.
  15. 6(c)(ii)3 marks· Chemistry · Unit 1 Q6 6(c)(ii)Account for the following observation, using the bonding present in the compounds: When exposed to the atmosphere, SiCl4 produces white fumes while no such fumes are produced with CCl4.
  16. 6(d)(i)1 mark· Chemistry · Unit 1 Q6 6(d)(i)Name the type of reaction taking place.
  17. 6(d)(ii)2 marks· Chemistry · Unit 1 Q6 6(d)(ii)State the name and the formula of the substance responsible for the presence of the white fumes.
  18. 6(e)1 mark· Chemistry · Unit 1 Q6 6(e)State ONE use of a ceramic material based on silicon (IV) oxide.
  19. 321 mark· Chemistry · Unit 1 Q32 32Which of the following chlorides of Group IV elements is the BEST electrical conductor?
  20. 331 mark· Chemistry · Unit 1 Q33 33Silicon carbide has a structure similar to that of diamond. What are the advantages derived from using silicon carbide ceramics when compared with steel?
  21. 331 mark· Chemistry · Unit 1 Q33 33What are the advantages derived from using silicon carbide ceramics when compared with steel?
  22. 371 mark· Chemistry · Unit 1 Q37 37Which of the oxides is an oxide of silicon?