📊 Chemistry
Q. The exhaled air contains
  • (A) Carbon dioxide only
  • (B) A mixture of carbon dioxide and nitrogen
  • (C) A mixture which has more carbon dioxide than oxygen
  • (D) A mixture of carbon dioxide, nitrogen and oxygen in which nitrogen has the highest percentage
✅ Correct Answer: (D) A mixture of carbon dioxide, nitrogen and oxygen in which nitrogen has the highest percentage

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