The extraction of metals from oxide ores involve(s) :

reduction with carbon

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reduction with aluminium

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electrolytic reduction

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reduction with CO

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Solution

The correct options are
A reduction with carbon
B electrolytic reduction
C reduction with CO
D reduction with aluminium
During extraction of metals from oxide ores, the reduction of metal ore to crude metal can be carried out by using several methods such as pyrometallurgy, hydrometallurgy and electrometallurgy. Various reducing agents such as carbon, hydrogen, aluminum or other metals can be used. CO also reduces metal ores to crude metals.

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Similar questions

The metal that cannot be extracted by reduction of its oxide with Aluminium is:

Column-I (Metal to be extracted)	Column-II (Method used for reduction of oxide)
(A) Iron or Zinc	(i) Reduction with aluminium
(B) Manganese or Chromium	(ii) Reduction with Carbon
(C) Mercury	(iii) Electrolytic reduction
(D) Aluminium	(iv) Reduction of heating alone

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