Question:
Which among the following is used as refrigerants and for air conditioning?
Which among the following is used as refrigerants and for air conditioning?
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Dichlorodifluoromethane (CFC-12) is a common refrigerant, but due to environmental concerns, its use has been reduced and replaced by more eco-friendly alternatives.
Updated On: Jan 27, 2026
- Trichloro methane
- Carbon tetrachloride
- Dichloromethane
- Dichloro difluoro methane
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The Correct Option is D
Solution and Explanation
Step 1: Understanding refrigerants.
Dichloro difluoro methane (CFC-12) is a chlorofluorocarbon used widely as a refrigerant and in air conditioning due to its low boiling point and non-flammability.
Step 2: Analyzing the options.
(A) Trichloro methane: This is also known as chloroform, but it is not commonly used as a refrigerant.
(B) Carbon tetrachloride: This was once used as a refrigerant but is now avoided due to its toxicity and harmful environmental effects.
(C) Dichloromethane: This is used as a solvent but not as a refrigerant.
(D) Dichloro difluoro methane: This is the correct answer, as it is used as a refrigerant in air conditioning systems.
Step 3: Conclusion.
The correct answer is (D) Dichloro difluoro methane.
Dichloro difluoro methane (CFC-12) is a chlorofluorocarbon used widely as a refrigerant and in air conditioning due to its low boiling point and non-flammability.
Step 2: Analyzing the options.
(A) Trichloro methane: This is also known as chloroform, but it is not commonly used as a refrigerant.
(B) Carbon tetrachloride: This was once used as a refrigerant but is now avoided due to its toxicity and harmful environmental effects.
(C) Dichloromethane: This is used as a solvent but not as a refrigerant.
(D) Dichloro difluoro methane: This is the correct answer, as it is used as a refrigerant in air conditioning systems.
Step 3: Conclusion.
The correct answer is (D) Dichloro difluoro methane.
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