What refrigerant causes ozone depletion?

CFCs
The main cause of the depletion was traced back to the rampant use of man-made substances containing CFCs that had been released into the atmosphere from aerosols and refrigerants. CFCs break down in sunlight to release chlorine and bromine, which destroy ozone molecules.

What is the most common refrigerant?

The most common refrigerants used for air conditioning over the years include:

• Chlorofluorocarbons (CFCs), including R12. This is known to contribute to the greenhouse gas effect.
• Hydrochlorofluorocarbons (HCFCs), including R22.
• Hydrofluorocarbons (HFCs), including R410A and R134.

Is R410a ozone-depleting?

Unlike alkyl halide refrigerants that contain bromine or chlorine, R-410A (which contains only fluorine) does not contribute to ozone depletion and is therefore becoming more widely used, as ozone-depleting refrigerants like R-22 are phased out.

What refrigerant is best?

They also have high-energy efficiency but are highly flammable as they are hydrocarbons. But they are the greenest refrigerants in the market….

What is the most commonly used refrigerant for most of the refrigerators?

Freon™ R-134a refrigerant
While R-12 was once the go-to choice for residential/domestic refrigeration systems, Freon™ R-134a refrigerant is now most commonly used. Its versatility allows it to work in home systems ranging from small under-the-counter refrigerators to family-sized refrigeration/freezer systems with multiple cooling compartments.

Which of the following refrigerants has the highest refrigeration efficiency?

Solution(By Examveda Team) Sulphur dioxide has the highest freezing point.