The refrigerant R-11 belongs to the following group
a) group "A2"
b) group "B1"
c) group "A3
d) group "2B"
e) group "A1"
Answer: E
The refrigerant R-11 belongs to the following group
a) group "A2"
b) group "B1"
c) group "A3
d) group "2B"
e) group "A1"
Answer: E