You Have an Aqueous Solution Containing Lead(II),sodium,iron(III),and Potassium Ions

question 151

Multiple Choice

You have an aqueous solution containing lead(II) ,sodium,iron(III) ,and potassium ions.You need to devise a way to separate the ions from one another.Which of the following statements is NOT correct regarding your method?

• A)Lead(II)ions can be precipitated as PbCl₂ by adding a source of chloride ions.
• B)Iron(III)ions can be precipitated as Fe(OH)₃ by adding a source of hydroxide ions.
• C)Adding HCl(aq)or NH₃(aq)can be used to adjust the acidity or basicity of the solution.
• D)Sodium and potassium cannot be separated by precipitation.
• E)Sodium and potassium can be separated by precipitation of potassium with sulfate ions.

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