A. Chlorofluorocarbon
B. Nitrogen
C. Sulfur
D. Zinc
🧠 Explanation:
Chlorofluorocarbon gas is used for cooling in refrigerators, enabling functionality. For chemistry students, this highlights chemical applications, making it a key topic for studying environmental chemistry, technology, and engineering. CFCs cool efficiently. Understanding this ensures knowledge of refrigeration processes. It’s essential for analyzing chemistry, environmental science, and engineering. Studying CFCs offers insights into how gases enable cooling, crucial for chemistry, engineering, and environmental science.
