Q.

The Refrigerant 'FREON' is –

A. Calcium Tetra Fluoride
B. Difluoro Dichloro Methane
C. Fluorspar and Felspar
D. Hydrofluosilicic Acid
Answer» B. Difluoro Dichloro Methane
Explanation: Dichlorodifluorornethane (R-12), is a colourless gas, and usually sold under the brand name Freon-12, is a chlorofluorocarbon halornethane (CFC), used as a refrigrant and aerosol spray propellant. Complying with the Montreal Protocol, its manufacture was banned in the United States along with many other countries in 1994 clue to concerns about damage to the ozone layer. It is soluble in many organic solvents.
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