1.

Give two uses of neon and argon.

Answer»

Uses of neon (Ne) :

  • Neon is used in the production of neon discharge lamps and signs by filling Ne in glass discharge tubes.
  • Neon signs are visible from a long distance and also have high penetrating power in mist or fog.
  • A mixture of neon and helium is used in voltage stabilizers and current rectifiers.
  • Neon is also used in the production of lasers and fluorescent tubes.

 Uses of argon (Ar) :

  • Argon is used to fill fluorescent tubes and radio valves.
  • It is used to provide inert atmosphere for welding and production of steel.
  • It is used along with neon in neon sign lamps to obtain different colours.
  • A mixture of 85% Ar and 15% N2 is used in electric bulbs to enhance the life of the filament.


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