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1 markRedox Reactions

CAPE Chemistry Unit 1 · 2011 · Paper 2 · Question 1(b)(ii)

A student investigated the relative reducing abilities of zinc and copper.

Describe ONE physical change that the student may have observed.

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Other parts of this question

  1. 1(a)(i)List FOUR postulates of Dalton's atomic theory.[4 marks]
  2. 1(a)(ii)Identify TWO of Dalton's postulates which were proven invalid by modern atomic theory.[2 marks]
  3. 1(b)(i)List TWO chemicals and ONE piece of apparatus that the student may use to carry out the investigation.[3 marks]
  4. 1(b)(iii)Identify the reducing agent in the experiment.[1 mark]
  5. 1(b)(iv)Write relevant half equations to illustrate the chemical changes that occur with EACH element.[2 marks]
  6. 1(b)(v)From the half equations in (iv), deduce a balanced equation for the redox reaction.[2 marks]

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