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 one of the oldest and most widely used refrigerants due to its excellent thermodynamic properties and zero ozone depletion potential. It has high latent heat of vaporization, making it very efficient for heat absorption. Nitrogen and oxygen are not used as refrigerants in standard refrigeration systems, and chlorine is toxic and corrosive.

Keep practicing — related questions