Prepare soluble salts

Which of the following salts CANNOT be prepared by precipitation?

• silver chloride

• bismuth hydrogencarbonate

• lead(II) iodide

• aluminium carbonate

Which of the following CANNOT be used to prepare zinc sulphate?

• Adding excess zinc metal to dilute sulphuric acid

• Adding 0.100 mole of zinc carbonate to 0.090 mole of sulphuric acid

• Adding excess zinc nitrate solid to dilute sulphuric acid

• Adding excess zinc oxide solid to 0.50 M sulphuric acid

Sodium chloride can be BEST prepared by …

• Titrating hydrochloric acid with sodium hydroxide solution using

  phenolphthalein as indicator

• Adding excess sodium carbonate solid into dilute hydrochloric acid

• Mixing lead(II) chloride solution with sodium nitrate solution

• Titrating sodium carbonate solution with dilute hydrochloric acid using methyl orange as indicator, followed by adding activated carton

Which of the following is the correct steps in preparing copper(II) sulphate crystal from copper(II) carbonate solid?

• Reaction, washing, filtration, crystallization, filtration, drying

• Reaction, evaporation, filtration, washing, drying

• Reaction, filtration, crystallization, filtration, washing, drying

• Reaction, filtration, evaporation, crystallization, filtration, washing, drying

The picture shows a solution X. Which of the following list of equipment and materials should be used to prepare a dry crystal of X?

• Bunsen burner, glass rod, beaker, filter funnel, filter paper, wash bottle

• Hot water bath, filter funnel, glass rod, forceps, watch glass

• Beaker, oven, glass rod, forceps, filter paper

• Crucible, Bunsen burner, glass rod, filter paper, desiccator