Chemistry · Metallurgy
बेयर प्रक्रम (Bayer's process) का उपयोग करके बॉक्साइट अयस्क से निकाला जाने वाला धातु है:
- 1Ba
- 2Pb
- 3Zn
- 4Al✓
सही उत्तर देखें
Al
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