Question

What is Freon -12?
A. Pesticide
B. Refrigerant
C. Solvent
D. Lubricant

Answer 1

Freon is a chlorofluorocarbon ($CFC$). Freon is a vapid gas, additionally called $R-22$. Dupont reserved the name Freon. The Freons are unscented, nonflammable, noncorrosive gases or liquids of low toxicity that were presented during the 1930s; they additionally demonstrated helpful fuels for aerosols and in various specialized applications.

Complete Step by step answer:
A refrigerant is a substance, normally a liquid (chemical compounds), that is utilized in a refrigeration cycle to cool a space. Refrigerants catch warmth and afterward release it to another space by utilizing the thermodynamic phenomena of phase changes, in which a liquid changes to a gas or vice versa in the refrigeration cycle.
Freon (or refrigerant) is a chemical substance utilized for an assortment of creation purposes: in refrigeration, in perfumery and medication, in gas cartridges, and so forth We consider freon as a top off to an air conditioner. It is a colorless and scentless gas or liquid that is totally flame resistant – it doesn't touch off in any event, when it comes into contact with fire.

Properties of Freon:- Freon can assimilate (during vanishing) and to deliver (during condensation) heat in the environment. These processes underlie the activity of the air conditioner. At the point when the air conditioner is turned on, freon evaporates, it starts to absorb heat from the room, accordingly cooling it. Further freon goes into the condenser, and the warmth released during the condensation that goes out into the street.

Hence, the correct option is B. Refrigerant.

Note: The chlorofluorocarbons ($CFCs$) in Freon are harmful to the climate and help to contribute to the exhaustion of the earth's ozone layer. Freon is being eliminated for various chemical compounds that are liberated from $CFCs$, making them all the more environmentally friendly.