Quelpr
2 marksQualitative Analysis

CSEC Chemistry · May/June 2008 · Paper 2 · Question 7(b)(i)

A farmer observes that his bean crop has few, yellow leaves. An Agricultural Extension Officer decides to test the soil for ammonium and iron (III) ions, and pH.

Briefly describe the test for the presence of ammonium ions in a soil sample.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 7(a)(i)State the importance of EACH of the following factors in plant growth: Mineral balance[1 mark]
  2. 7(a)(ii)State the importance of EACH of the following factors in plant growth: pH[1 mark]
  3. 7(a)(iii)State the importance of EACH of the following factors in plant growth: Humus content of the soil[2 marks]
  4. 7(b)(ii)The Officer finds the soil to be acidic and recommends the addition of lime. Suggest ONE possible reason for the acidic nature of the soil. Explain the effect…[4 marks]
  5. 7(c)The farmer, in addition to adding the recommended lime to the soil, also decides to add an ammonium fertilizer, thinking that it would increase his crop yield.…[5 marks]

More practice: the rest of this paper · more Qualitative Analysis questions · all CSEC Chemistry past papers