Multiple choice

Which of the following is the gas used for refrigeration?

  1. Nitrogen

  2. Oxygen

  3. Ammonia

  4. Chlorine
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ammonia (NH3) is widely used in refrigeration systems due to its excellent thermodynamic properties, high heat transfer efficiency, and zero ozone depletion potential. It's commonly used in industrial refrigeration and cold storage.

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