Chemistry · Chemical Bonding and Valency
निम्नलिखित में से कौन सा तत्व आमतौर पर परिवर्तनशील संयोजकता (variable valency) प्रदर्शित करता है?
- 1एल्युमिनियम
- 2मैग्नीशियम
- 3सोडियम
- 4लोहा (Iron)✓
सही उत्तर देखें
लोहा (Iron)
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