Chemistry · Atoms and Molecules
कार्बन और हाइड्रोजन के परमाणु द्रव्यमान क्रमशः हैं:
- 16 u और 2 u
- 26 u और 1 u
- 312 u और 1 u✓
- 412 u और 2 u
सही उत्तर देखें
12 u और 1 u
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