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5 marksGroup IV Elements

CAPE Chemistry Unit 1 · 2007 · Paper 2 · Question 6(c)

Explain the variation in the acid/base character of the oxides of oxidation state +2 of the elements of Group IV.

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  1. 6(a)(i)Calculate the oxidation number of the first mentioned element in EACH of the following compounds, and explain the variation in these oxidation numbers: MgCl₂,…[5 marks]
  2. 6(b)(i)Explain the terms 'atomic radius' and 'ionic radius'.[5 marks]
  3. 6(b)(ii)Account for the variation in atomic and ionic radii of the elements in Group II.[5 marks]
  4. 6(b)(iii)Account for the variation in the solubility of the sulphate (VI) of the Group II elements.[5 marks]

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