Question

What does R-22 smell like___________.

1) Sweet
2) Sour
3) Odorless
4) Cannot be determined

Answer 1

R-22 is an odorless refrigerant typically used in air conditioning systems and it should not have any detectable scent when in a pure state.

Step-by-step explanation:

The refrigerant called R-22, commonly used in air conditioning and refrigeration systems, is known to be odorless when it is pure. However, if contaminants are present, it can occasionally develop a slight smell. In the context of the question regarding what R-22 smells like, the most accurate answer is that it is odorless. This is because under normal conditions and when it's in a pure state, R-22 does not emit any smell that can be detected by the human nose.