Question

Which of the following anions will have minimum flocculation value for the ferric oxide solution?

• A. Cl¯
• B. Br¯
• C. SO42–
• D. [Fe(CN)6l3-

Answer 1

Answer: (D)

[Fe(CN)6l3-

Answer 2

Higher the charge on coagulating ion, lesser the flocculation value.