Question:

Most commonly used refrigerant in direct immersion freezing of food is

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Liquid nitrogen is ideal for freezing due to its very low temperature and ability to rapidly freeze food without compromising texture.
Updated On: Nov 27, 2025
  • Monochlorodifluoromethane
  • Dichlorodifluoromethane
  • Liquid nitrogen
  • Freon
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The Correct Option is C

Solution and Explanation

In direct immersion freezing, food is immersed in a refrigerant that has a very low temperature. Liquid nitrogen is commonly used for this process due to its extremely low boiling point (-196°C), which allows for rapid freezing of food products. The other refrigerants listed, while useful in refrigeration systems, are not typically used in direct immersion freezing. Thus, the correct answer is Liquid nitrogen.
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