A pure sample of lead sulfate is prepared by mixing two aqueous salt solutions. The precipitated lead sulfate is then removed from the reaction mixture. Which solutions are used, and how is the lead sulfate separated?
- Alead chloride and sodium sulfate; crystallisation
- Blead chloride and sodium sulfate; filtration
- Clead nitrate and potassium sulfate; crystallisation
- Dlead nitrate and potassium sulfate; filtration