4 marksImpact of Metals on Living Systems and the Environment

CSEC Chemistry · January 2015 · Paper 2 · Question 6(a)(ii)

Mineral nutrients and soil acidity are important for healthy plant growth.

Design an experiment to investigate the effect of the deficiency stated in (a) (i) above on plant growth.

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Other parts of this question

6(a)(i)Identify ONE element that is essential for plant growth and state ONE effect of its deficiency.[2 marks]
6(b)(i)State ONE problem associated with acidic soils.[1 mark]
6(b)(ii)Use a balanced ionic equation to explain how the addition of lime can increase the pH of acidic soils.[2 marks]
6(b)(iii)Lime can also cause nitrogen to be lost from soils. State a reason for this. Include a balanced ionic equation with state symbols in your answer.[3 marks]
6(c)Identify TWO such disadvantages and suggest ONE way to address ONE of these disadvantages.[3 marks]

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