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4 marksNon-Metals

CSEC Chemistry · January 2010 · Paper 2 · Question 7(a)

Many substances are essential for healthy plant growth.

Name TWO elements that are essential for plant growth. For EACH of the elements named, identify ONE effect of its deficiency.

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Other parts of this question

  1. 7(b)(i)Write the names of the type of chemical reactions taking place at A and D.[2 marks]
  2. 7(b)(ii)Write the name of the formula of compound B.[2 marks]
  3. 7(b)(iii)Name the type of compound labelled C.[1 mark]
  4. 7(c)Suggest ONE way in which lime can cause nitrogen to be lost from the soil. Include a balanced ionic equation in your answer.[3 marks]
  5. 7(d)(i)State TWO advantages of using hydroponics.[2 marks]
  6. 7(d)(ii)Suggest ONE possible limitation of using hydroponics.[1 mark]

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