Question

Which of the impurity can be separated from a solution by electrodialysis.

• A. Alcohol
• B. Alum
• C. Sugar
• D. Parchment paper

Answer 1

Answer: (B)

Alum

Answer 2

Alum can be separated from a solution by electrodialysis due to alum give $A l ^ { 3 + }$ion in solution.