Salt Preparation
13 past-paper questions on Salt Preparation · examined 2020–2025.
20251 question
How can a pure sample of barium sulfate be obtained from barium carbonate?
20242 questions
A student is provided with suitable apparatus, distilled water and the following reagents. Which salts can the student prepare as a pure dry sample?
The table shows four methods used to prepare pure salts. Which row shows a method of making a pure sample of each named salt?
20233 questions
Plan an experiment to prepare pure dry crystals of ammonium sulfate using common laboratory apparatus, dilute sulfuric acid, aqueous ammonia, and methyl orange indicator.
You are not expected to do any experimental work for this question. Copper(II) sulfate is a salt used to kill pests on plant leaves. Copper(II) sulfate is prepared by neutralising dilute sulfuric acid with solid copper(II) oxide. Plan an experiment to prepare pure dry crystals of copper(II) sulfate. Your plan should include the use of: • common laboratory apparatus • dilute sulfuric acid • solid copper(II) oxide. No other chemicals should be used. Your plan should include: • the apparatus needed • the method to use. You may draw a diagram to help answer the question.
Plan an experiment to prepare pure dry crystals of copper(II) sulfate.
20222 questions
Which substance reacts with dilute sulfuric acid in the preparation of a pure sample of lead(II) sulfate?
A pure sample of a salt is obtained by filtration followed by evaporation of the filtrate. Which pair of reagents would produce the salt?
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