Name three noble gases present in the air. State their one industrial use.
Name three noble gases present in the air. State their one industrial use.
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Three noble gases present in the air are :
1. Helium: It is used for filling weather observation balloons.
2. Argon: It is used for filling electric bulbs at low pressure.
3. Neon: It is used for making advertising glow tubes, used in big shops, hotels etc. at night.
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