Question

Greenhouse gases causing a rise of 3°C rise in the overall global temperature in the past century are CFCs. The CFC used in refrigerators is

• A. Ammonia
• B. Freon
• C. Methane
• D. Carbon dioxide

Hint:

Freon, a type of CFC, was commonly used in refrigeration systems, but its use has been phased out due to its harmful effect on the ozone layer.

Answer 1

The Correct Option is B

Step 1: Understand CFCs and their use in refrigeration.
Chlorofluorocarbons (CFCs) are synthetic compounds that were historically used as refrigerants in air conditioning and refrigeration systems.
Freon is the most commonly known CFC used for this purpose.
Step 2: Identify the correct CFC.
Freon (CFC-12) is the CFC that was widely used in refrigerators and air conditioners.