AP EAMCET · Chemistry · General Principles and Processes of Isolation of Metals
The correct statements regarding froth floatation method in metallurgy are
I. Used for the purification of sulphide ores
II. Used for the roasting of sulphide ores
III. It is based on the relative densities of gangue and ore particles
IV. It is based on the difference in the wetting properties of gangue and ore particles in frothing agent and water
- A I & IV only
- B II & III only
- C II & IV only
- D I & III only
Answer & Solution
Correct Answer
(A) I & IV only
Step-by-step Solution
Detailed explanation
The froth floatation process is used for the concentration (purification) of ores, specially sulphide ores. It is based on the principle of relative preference of wetting of gangue and ore particles in water and frothing agent. Thus, I and IV are correct.
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