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At room temperature, it is a colorless, non-flammable gas, with a slightly sweet odor and taste. It is used in surgery and dentistry for its anesthetic and analgesic effects. It is known as "laughing gas" due to the euphoric effects of inhaling it. Which one of the following is the gas we are talking about?
Options:
A .  Argon
B .  Neon
C .  Xenon
D .  Nitrous oxide
Answer: Option D
:
D
Option:(d)

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