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Out of calcination and roasting, which o...

Out of calcination and roasting, which one is carried out in case of the following ores?
Brown haematite
(ii) Bauxite
(iii) Zinc blende
(iv) Calamine

Text Solution

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Calcination is used for brown haematite, bauxite and calamine whereas roasting is used in case of zinc blende.
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