Laughing gas is

General Science · General Awareness · Medium · Practice for RRB Group D, RRB NTPC CBT 1, SSC CGL Tier 1, SSC CGL Tier 2, SSC CHSL Tier 1

Laughing gas is

Nitric oxide
Nitrous oxide
Nitrogen dioxide
Ammonia

Answer and solution

Correct answer: B) Nitrous oxide

N₂O is used as a mild anaesthetic.

Learn the method: General Science rules and worked examples

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