Multiple choice

Among the following gases which one is used as fuesl, oxidizers and refrigerants?

  1. Cryogenic gases

  2. Biogas

  3. Inert gas

  4. Industrial gas
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A Correct answer
Explanation

Cryogenic gas is a gas which has been supercooled such that it is a liquid or solid at a standard temperature.Cryogenic gases are liquefied gases at standard temperature and pressure. They are kept in their liquid state at very low temperatures. Cryogenic gases are very popular and they are used as fuels, oxidizers and refrigerants. These gases are to be stored properly to get their maximum usage.

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