Chemistry · Metals and Non-metals
आभूषण बनाते समय सोने को कठोर बनाने के लिए आमतौर पर उसमें कौन सी धातु मिलाई जाती है?
- 1एल्युमीनियम (Aluminum)
- 2तांबा (Copper)✓
- 3टिन (Tin)
- 4जिंक (Zinc)
सही उत्तर देखें
तांबा (Copper)
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