Which process is used to oxidise impurities present in crude metal that is obtained by reduction of ore?
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a
Poling of blister copper
b
Manufacturing of steel from pig iron.
c
Cupellation of silver
d
VanArkel process of Titanium
answer is B.
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Detailed Solution
In manufacturing of steel from pig iron, impurities are selectively oxidized in Bessemer converter.In case of cupellation of silver, the impurity lead is selectively oxidized