☰
General Principles And Processes of Isolation Of Elements
Discuss some of the factors which need consideration before deciding on the method of extraction of metal from its ore.
Some of the factors which need consideration before deciding on the method of extraction of metal from its ore are:
Type of impurity present in the ore.
(i) Hand picking: When the ore and impurities differ in the size and the shapes of the particles.
(ii) Gravity separation: When the gangue impurities are lighter than the ore.This can be achieved by washing with a stream of running water.
(iii) Froth floatation process: This is used for sulphide ores.
(iv) Magnetic process: This is used in those cases where the impurities of ore are of magnetic nature.
Sponsor Area
Is it true that under certain conditions. Mg can reduce Al2O3 and Al can reduce MgO? What are those conditions?
Titanium is a metal of modern times. It is obtained as oxide. Why it could not be extracted earlier despite its wide occurence?
Name the common elements present in the anode mud in electrolytic refining of copper. Why are they so present?
What criterion is followed for the selection of the stationary phase in chromatography?
What is the role of cryolite in the metallurgy of aluminium?
Why is zinc not extracted from zinc oxide through reduction using CO?
What is the role of graphite rod in the electrometallurgy of aluminium?
Sponsor Area
Sponsor Area