Chemistry · Metallurgy
निम्नलिखित में से कौन सी प्रक्रिया अयस्क को ऑक्साइड में बदलने के लिए उपयोग की जाने वाली एक पाइरोधातुकर्म (pyrometallurgical) तापीय उपचार विधि है, न कि सांद्रण (concentration) की विधि?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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भर्जन (Roasting)
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