Quelpr
1 markRedox Equilibria

CAPE Chemistry Unit 1 · May/June 2023 · Paper 2 · Question 3(g)(i)

Standard electrode potentials involving sulfur species and halogens.

Which of the halogens bring about the maximum change in oxidation number of sulfur?

This question uses a figure or table from the paper — you'll see it when you practise.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 3(a)(i)In Table 3, write the formulae for the oxides of the elements in Period 3, excluding chlorine and argon.[3 marks]
  2. 3(a)(ii)In Table 3, write the oxidation number for the element of EACH oxide in Period 3, excluding chlorine and argon.[3 marks]
  3. 3(a)(iii)Explain the nature and variation of the oxidation numbers for the elements in the oxides in Table 3.[2 marks]
  4. 3(b)Write the equation for the reaction between the oxide of phosphorus and cold water.[2 marks]
  5. 3(g)(ii)Write ONE full ionic equation to represent this change.[1 mark]
  6. 3(h)(i)Identify element Z.[1 mark]
  7. 3(h)(ii)Explain the reaction taking place in EACH of the tests above. Include balanced equations in your explanation.[4 marks]

More practice: the rest of this paper · more Redox Equilibria questions · all CAPE Chemistry Unit 1 past papers