O-LevelChemistryChemistry of the Environment5070/12 · Oct/Nov 2014 · Q231 Mark

Which statements about fertilisers containing nitrates are correct? 1 They increase plant growth. 2 Nitrates dissolve in water. 3 Eutrophication is caused by nitrates from farmland entering rivers. 4 If nitrates are applied to alkaline soils they produce ammonia gas.

A1 and 3 only

B1, 2 and 3

C1, 2 and 4

D2 and 3 only

✓ Correct answer

B: 1, 2 and 3

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Topic: Chemistry of the Environment, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2014 Paper 1 Variant 2, question 23.

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