Q. What is laughing gas?

  • (A) Carbon monoxide
  • (B) Hydrogen peroxide
  • (C) Sulphur dioxide
  • (D) Nitrous Oxide
✅ Correct Answer: (D) Nitrous Oxide

Published by Ram Sharma ⭐ 193.88K Points at 19-Nov-2021 06:37 pm in Chemistry

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