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2 marksPeriod 3: Sodium to Argon

CAPE Chemistry Unit 1 · 2010 · Paper 2 · Question 6(e)(ii)

P4O10 and PCl5 are the oxide and chloride of phosphorous in its highest oxidation state.

Write an equation to show how EACH of the following reacts with water. PCl5

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Other parts of this question

  1. 6(a)(i)Account for EACH of the following variations in properties across the period Na to Ar. Electronegativity increases across the period.[2 marks]
  2. 6(a)(ii)Account for EACH of the following variations in properties across the period Na to Ar. Melting point of the elements increases from Na to Si.[2 marks]
  3. 6(b)Describe the trend in the acid/base character of the oxides of the elements in Period 3.[3 marks]
  4. 6(c)Account for the acidic nature of the aluminium chloride solution.[2 marks]
  5. 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.[2 marks]
  6. 6(e)(i)Write an equation to show how EACH of the following reacts with water. P4O10[2 marks]

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