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4 marksMixtures and Separations

CSEC Chemistry · January 2011 · Paper 2 · Question 4(a)

The production of sugar from sugar cane is important to the Caribbean economy. The process of extracting sucrose from the juice of sugar cane involves several steps. Two of these steps are: (i) Clarifying (ii) Crystallizing

Outline what happens in EACH step.

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Other parts of this question

  1. 4(b)(i)Outline the reason for the change in atomic radius from magnesium to barium.[2 marks]
  2. 4(b)(ii)Barium reacts more readily with water than magnesium does. With reference to the data in Table 2, explain this observation.[2 marks]
  3. 4(c)(i)State whether a reaction would take place in EACH case.[2 marks]
  4. 4(c)(ii)Write a balanced equation, where appropriate, for the reaction occurring in (c) (i) above.[2 marks]
  5. 4(d)(i)Describe a test that can be used to identify the solution formed with sulphur dioxide.[2 marks]
  6. 4(d)(ii)Write a balanced equation to support the use of this test.[1 mark]

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