Roasting of copper pyrites ores is for the following purpos…

Chemistry General Principles and Processes of Isolation of Elements ( Not In Syllabus ) Roasting & Calcination Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 13, 2026

Roasting of copper pyrites ores is for the following purposes

To burn off sulphur, arsenic, antimony etc. as oxides and convert all the iron and copper to their oxides

To burn off arsenic, antimony etc. as oxides and burn off sulphur so that enough of it remains to combine with all the copper

To burn off sulphur partially to leave enough to combine with arsenic, antimony etc. and to convert all the iron and copper to oxides

To melt arsenic and antimony sulphides etc. and remove them by liquation and to burn off sulphur partially to leave enough to combine with copper and iron

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