Chemistry - Metallurgy Question with Solution | TestHub
In the forth floatation process, finely divided ore, water, pine oil and sodium ethyl xanthate are taken together and air is blown from the bottom of the container. Froth is formed, ore particles float on the top of the froth and are collected into a separate container. These are washed with water to remove sticking impurities. Finally, the ore is separated from impurities.
The overall floating of the ore occurs due to :-
Options:
Answer:
Solution:
n froth flotation, finely divided sulphide ore is mixed with water and reagents.
Collector (sodium ethyl xanthate) adsorbs on ore surface.
This makes ore surface hydrophobic (water-repelling).
Air bubbles attach to these hydrophobic particles due to adsorption + lyophilic–lyophobic nature of collector.
Froth forms and carries ore particles upward.
Hence correct option is (C).