Additives used for promoting the flocculation of particles is a/an _____________________?
Correct answer: C. Both A. & B.
- A. Electrolyte
- B. Surface active agent
- C. Both A. & B.
- D. Neither A. nor B.
Explanation
Electrolytes promote flocculation by compressing the electrical double layer around particles, while suitable surface-active agents can also reduce repulsion and promote aggregation. Thus both classes may act as flocculating additives.
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