Multiple choice

The refrigerant commonly used for domestic refrigerators is

  1. ammonia

  2. nitrogen

  3. ammonia nitrate

  4. nitroglycerine
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Ammonia (R-717) is a common refrigerant used in industrial and large-scale cooling systems. While modern domestic refrigerators often use HFCs or hydrocarbons, ammonia is historically and technically significant as a refrigerant.

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