☰
General Principles And Processes of Isolation Of Elements
You are provided with samples of some impure metals such as zinc, copper and germanium. Which methods could you recommend for the purification of each of these metals?
Zinc: The metal may be purified by
(i) Fractional distillation
(ii) Electrolytic refining.
Copper: The metal may be purified by
(i) Poling
(ii) Electrolytic refining.
Germanium: The metal may be purified by
(i) zone refining.
Sponsor Area
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?
Predict conditions under which Al might be expected to reduce MgO.
Sponsor Area
Sponsor Area