O-LevelChemistryChemistry of the Environment5070/11 · Oct/Nov 2015 · Q221 Mark

Ammonium nitrate, NH4NO3, is an artificial fertiliser produced from ammonia. What is an advantage of using ammonium nitrate as a fertiliser?

AIt contains a large percentage by mass of nitrogen.

BIt gives off ammonia gas.

CNitrates are insoluble.

DNitrates can cause eutrophication.

✓ Correct answer

A: It contains a large percentage by mass of nitrogen.

Oracle Prep sorts past-paper questions by topic, so you can drill Chemistry of the Environment and see which topics are most likely to come up next.

Topic: Chemistry of the Environment, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2015 Paper 1 Variant 1, question 22.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content