Environmental chemistry (CFCs): In which common household products were chlorofluorocarbons (CFCs) historically used? Consider domestic applications before bans/restrictions due to ozone depletion concerns. Choose the correct application set.
General Knowledge
General Science
Difficulty: Easy
Choose an option
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ARefrigerators and air conditioners (as refrigerants) and aerosol spray propellants
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BCooking gas cylinders and diesel generators
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CPressure cookers and electric irons
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DLED bulbs and mobile phones
Answer
Correct Answer: Refrigerators and air conditioners (as refrigerants) and aerosol spray propellants
Explanation
Given data
- Compound class: Chlorofluorocarbons (CFCs).
- Ask: Household/domestic uses prior to phase-out.
Concept/Approach CFCs (e.g., CFC-11, CFC-12) were widely used as refrigerants in refrigerators/air-conditioners and as propellants in aerosol sprays and foam blowing agents, before being phased out under the Montreal Protocol due to ozone depletion.
Final Answer Refrigerators and air conditioners (as refrigerants) and aerosol spray propellants