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4 marksNon-Metals

CSEC Chemistry · May/June 2014 · Paper 2 · Question 6(a)

Farmers observe yellowing crops and curling leaf tips. One farmer suggests nutrient deficiency and fertilizers, another suggests acidic soil and adding lime. As a consultant, you need to advise them.

A suggestion of which nutrients the soil could be missing. Give a reason for your suggestion. Suggestion: Reason:

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Other parts of this question

  1. 6(b)TWO advantages of using organic manure rather than commercial fertilizers.[2 marks]
  2. 6(c)ONE disadvantage of using organic manure rather than commercial fertilizers.[1 mark]
  3. 6(d)A description of a test of soil acidity.[3 marks]
  4. 6(e)The chemical name and formula for lime. Advise when lime should be used.[2 marks]
  5. 6(f)A reason why lime should NOT be added to the soil at the same time as a commercial ammonium fertilizer. Include a balanced chemical equation to support your…[3 marks]

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