Which of the following is known as a laughing gas ?
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Nitrous oxide
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Sevoflurane
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Xenon
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Amobarbital
A
Correct answer
Explanation
Nitrous oxide, commonly known as laughing gas or sweet air is a chemical compound with the formula N2O. It is a colourless non-flammable gas, with a slightly sweet odour and taste. It is used in surgery and dentistry for its anesthetic and analgesic effects.