Q. Which among the given gases is known as 'Laughing Gas' -

(A) Nitrogen
(B) Nitrous oxide
(C) Nitrogen peroxide
(D) Nitric oxide

✅ Correct Answer: (B) Nitrous oxide

Published by Ram Sharma ⭐ 193.88K Points at 04-Apr-2022 05:05 pm in General Awareness

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