Multiple choice general knowledge

DU PONT HAS PATENTED HYDRO-CHOLORO-FLOURO-CARBONS. WHAT DO THEY CALL IT?

  1. CFC

  2. XENON

  3. NEON

  4. FREON
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Du Pont trademarked their hydro-chloro-fluorocarbon compounds as Freon. Freon became the generic term for CFC refrigerants used in air conditioning and refrigeration before being phased out due to ozone layer concerns. CFC is the chemical class name, not Du Pont's brand.

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