Chemistry 0620 · IGCSE · The characteristic properties of acids and bases

The characteristic properties of acids and bases — practice question

Ammonium nitrate, $\text{NH}_4\text{NO}_3$, is a fertiliser used on fields to support the growth of crops. Slaked lime, $\text{Ca(OH)}_2$, is an alkali and is spread on fields to lower the soil’s acidity. Ammonium nitrate and slaked lime must not be applied to a field together because they react with one another to produce a gas, Z. Identify Z.

  • Aammonia
  • Bhydrogen
  • Cnitrogen
  • Doxygen

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