what is the chemical present in the refridgerators?

Answer 1

The chemicals present in refrigerators are chlorofleurocarbons or CFC's. They are more commonly known as Freon, a registered trademark name, belonging to Dupont.

Answer 2

Depends on when the refrigerator was built. Today Freon is banned due to the negative effects it has on the ozone layer.

From Wikipedia:
Early mechanical refrigeration systems employed sulfur dioxide gas or anhydrous ammonia, with small home refrigerators primarily using the former. Being toxic, sulfur dioxide rapidly disappeared from the market with the introduction of Freon. Ammonia is still used in some large commercial plants, well away from residential areas, where a leak will not cause widespread injuries.

Here's a complete list of the different refrigerants:
http://en.wikipedia.org/wiki/List_of_refrigerants

Until concerns about depletion of the ozone layer arose in the 1980s, the most widely used refrigerants were the healthiness R-12 and R-22, with R-12 being more common in automotive air conditioning and small refrigerators, and R-22 being used for residential and light commercial air conditioning, refrigerators, and freezers. Some very early systems used R-11 because its low boiling point allows low-pressure systems to be constructed, reducing the mechanical strength required for components. R-134a and certain blends are now replacing chlorinated compounds.

Use of liquefied propane gas as a refrigerant is gaining favor, especially in systems designed for R-12, R-22 or R-134a.

Answer 3

R-12

Answer 4

R 22

Answer 5

Freon Gas

Answer 6

Freon

Answer 7

Freon

Answer 8

Freon

Answer 9

The chemical present in refrigerators is freon.

Answer 10

The stuff is a refrigerant whose trade name is Freon. It is a kind of chlorofluorocarbon. (Since I'm a chemistry dunce I really have no idea what that means, but you can check it out in Wikipedia by searching for "Freon.")