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3 marksReactivity and Extraction of Metals

CSEC Chemistry · January 2012 · Paper 2 · Question 5(b)(ii)

A chemist analysed a newly discovered oxide of a Metal M and found that it had the following properties: • The oxide of Metal M was soluble in sodium hydroxide. • The formula for the oxide of Metal M was MO. • When the oxide (MO) was heated with carbon at high temperatures, no reaction occurred. • Metal M displaced aluminium from a solution of Al³⁺ ions.

Suggest a suitable method for extracting Metal M from its ore and explain your answer.

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Other parts of this question

  1. 5(a)(i)Describe the process for obtaining iron from its ore. In your description, identify the materials used and include a chemical equation to show how iron is…[6 marks]
  2. 5(a)(ii)Carbon and carbon monoxide are both able to reduce the oxide ore to produce iron. Suggest a suitable explanation why carbon monoxide is used to reduce the iron…[1 mark]
  3. 5(b)(i)a)Write suitable equations for the action of heat on the hydroxide of M.[4 marks]
  4. 5(b)(i)b)Write suitable equations for the action of heat on the nitrate of M.[4 marks]
  5. 5(b)(iii)Suggest ONE chemical property of Metal M.[1 mark]

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