Quelpr
4 marksFirst Row Transition Elements

CAPE Chemistry Unit 1 · 2008 · Paper 2 · Question 3(b)(i)

Figure 3 refers to a reaction scheme involving cobalt complexes.

Complete the table below by writing the colour of the species labelled A, B, C and D.

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)Insert arrows in EACH of the boxes in Figure 2 to show the electronic configuration of the species.[5 marks]
  2. 3(a)(ii)a)Explain EACH of the following statements in terms of electronic configurations. Fe²⁺ ions are readily oxidized to Fe³⁺ ions.[3 marks]
  3. 3(a)(ii)b)Explain EACH of the following statements in terms of electronic configurations. Mn²⁺ ions are NOT readily oxidized to Mn³⁺ ions.[1 mark]
  4. 3(a)(ii)c)Explain EACH of the following statements in terms of electronic configurations. Zn is NOT considered to be a transition element.[1 mark]
  5. 3(b)(ii)State the reagent used for the conversion in Reaction 1 (D → B).[1 mark]
  6. 3(c)Explain how an aqueous solution of iron(II) sulphate functions as an antidote for cyanide poisoning.[2 marks]

More practice: the rest of this paper · more First Row Transition Elements questions · all CAPE Chemistry Unit 1 past papers