Thank you for reporting, we will resolve it shortly
Q.
Freon (dichlorodifluoro methane) is used
Haloalkanes and Haloarenes
Solution:
Freon $(CCl_{2}F_{2})$ is an odourless, non-corrosive, nontoxic gas
which is stable even at high temperatures and pressures. It
has low b.pt, low specific heat and can be easily liquefied by applying pressure at room temperature. It is therefore, widely used as refrigerant (cooling agent) in refrigerators and air conditioners.