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1 markQualitative Analysis

CSEC Chemistry · May/June 2009 · Paper 2 · Question 7(b)

A student puts a soil sample in a test tube, adds sodium hydroxide, and heats the mixture.

For which ions is the student MOST likely testing?

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Other parts of this question

  1. 7(a)(i)What is meant by the term 'humus' as it relates to soil?[4 marks]
  2. 7(a)(ii)State THREE reasons why humus is an important component of soil.[4 marks]
  3. 7(c)Suggest ONE advantage and ONE disadvantage EACH of biological and chemical control of pests.[4 marks]
  4. 7(d)(i)What is meant by the term 'hydroponics'?[2 marks]
  5. 7(d)(ii)Advise Mrs. Wills on TWO advantages and TWO limitations of setting up such a farm.[4 marks]

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