BPSC 44th Exam Prelims 2002 Solved Paper

Question : 71 of 150

Marks: +1, -0

The laughing gas used by doctors in anaesthesia is –

Carbon Dioxide
Nitrogen Oxide
Nitrous Oxide
Nitrogen Dioxide

Solution:

- Nitrous oxide, commonly known as laughing gas is a chemical compound with the formula

N _{2} O

.
- At room temperature, it is a co-lourless non-flammable gas, with a slight metallic scent and taste.
- Nitrous oxide is also used in surgery and dentistry, for its anaesthetic and pain-reducing effects.

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