Chemistry · Oct / Nov 2019 · Paper 11 · Question 21

Which statement gives reasons why ammonium sulfate can be used as a fertiliser?

1. AIt contains nitrogen and phosphorous which are essential constituents of plant protein.
2. BIt contains nitrogen to promote plant growth and is soluble in water.
3. CIt contains sulfate ions which changes the pH of the soil.
4. DIt contains sulfate ions and forms ammonia when lime is added to the soil.

As printed in the paper