SSC SSC JE Mechanical 2025 Mock Test Series (Paper 1 & Paper 2) Refrigeration and Air Conditioning Refrigerants

अकार्बनिक प्रशीतक R - 744 का क्वथनांक _________ है।

1
-15.8°C 
2
+33.6°C 
3
-73.6°C 
4
+22.4°C
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