A student compares the laboratory and industrial preparations of ammonium sulfate.
Statement 1: in industry, the ammonia and the sulfuric acid are first manufactured from raw materials such as air, natural gas, sulfur and water
Statement 2: the laboratory preparation is a continuous process, whereas the industrial preparation is a batch process
Statement 3: both methods form ammonium sulfate by the same reaction, 2NH3+H2SO4→(NH4)2SO4\mathrm{2NH_{3} + H_{2}SO_{4} \rightarrow (NH_{4})_{2}SO_{4}}2NH3+H2SO4→(NH4)2SO4
Which statements are correct?
1 only
1 and 3 only
2 and 3 only
1, 2 and 3
60 exam-style questions on Edexcel GCSE Chemistry 6.3 Dynamic equilibria, covering 6.3.1 The Haber process as a reversible reaction, 6.3.2 Conditions and rate in industrial equilibria, and 6.3.3 Fertilisers and the preparation of ammonium sulfate. Each one has a worked solution and a mark scheme showing where the marks go.