https://www.khanacademy.org/science/strengthened-shs-earth-and-space-science-1/x006d5d274c051fd7:earth-s-materials-and-resources/x006d5d274c051fd7:minerals-and-their-uses/v/roasting-and-calcination-extraction-of-metal-chemistry-khan-academy 2020-09-09T12:07:50Z Roasting and calcination - extraction of metal Sulfide ores are roasted and carbonate ores are calcinated to convert them to oxide. Ram Prakash video https://cdn.kastatic.org/googleusercontent/lrbbOZW2JQsbIDlAeNhO4mYdVjhLl6o8omWCFrmdSkiC5VRCCsYjYLrmLhRchXJ2mFsmgzPFbH01sj05L5H02NXJ Roasting and calcination - extraction of metal Sulfide ores are roasted and carbonate ores are calcinated to convert them to oxide. https://cdn.kastatic.org/ka-youtube-converted/tDampkkeS8Q.mp4/tDampkkeS8Q.mp4 248 A few important processes used in metallurgy https://www.khanacademy.org/science/telangana-class-10-physical-sciencein/x1ac9c643dc8dffee:principles-of-metallurgy/x1ac9c643dc8dffee:a-few-important-processes-used-in-metallurgy/e/roasting-and-calcination 2026-03-31T01:02:11.609621879Z Roasting and calcination Let's practice on identify the metal oxides which can be roasted and calcined. Chaitra exercise