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#55414 Bangla Language & Literature পরমানুর গঠন Level 0

পানিতে অক্সিজেন ও হাইড্রোজেনের অনুপাত কত?

  1. A ১:১৬
  2. B ১:২
  3. C ১৬:১
  4. D ২:১
Answer: B - ১:২

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