इथेनॉल के 1 मोल का द्रव्यमान क्या है?

  1. 36 ग्राम
  2. 42 ग्राम
  3. 46 ग्राम
  4. 52 ग्राम

Answer (Detailed Solution Below)

Option 3 : 46 ग्राम
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सही उत्तर 3 अर्थात् 46 ग्राम है।

व्याख्या:

  • C2H5OH का 1 मोल = ग्राम में C2H5OH का आणविक द्रव्यमान 
    • 2C का द्रव्यमान + 6H का द्रव्यमान + 1O का द्रव्यमान
    • 12 × 2 + 1 × 6 + 16 × 1
    • 24 + 6 + 16
    • 46 ग्राम
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