Chemistry · Valency
निम्नलिखित में से कौन सा तत्व आमतौर पर 2 की संयोजकता (वैलेन्सी) प्रदर्शित नहीं करता है?
- 1लोहा (आयरन)
- 2मैग्नीशियम
- 3नाइट्रोजन✓
- 4ऑक्सीजन
सही उत्तर देखें
नाइट्रोजन
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