Question

CFCs are not recommended to be used in refrigerators because they

• A. increase temperature
• B. deplete ozone
• C. affect environment
• D. affect human body

Answer 1

The correct option is B

deplete ozone

Hint: Ozone depletion

The correct option is B: deplete ozone

CFC:

Chlorofluorocarbon (CFC), any of a group of organic compounds made up of carbon, fluorine, and chlorine.

1. CFCs are released into the atmosphere and they travel upwards. They react with UV rays and form Chloride ions.
2. These Chloride ions react with the ozone and break it down into molecular oxygen.

Option A:

They are not greenhouse gases and hence do not increase temperature.

Option C:

They do affect the environment but this option is not precise.

Option D:

They do not directly affect the human body as they are light gases and travel upwards after release.

CFCs are not recommended to be used in refrigerators because they deplete ozone.