Question

write the IUPAC name of freon,its preparation and one use

Answer 1

1.  Difluorodichloromethane
2. It can be prepared by reacting carbon tetrachloride with hydrogen fluoridein the presence of a catalytic amount of antimony pentachloride:

CCl4 + 2HF → CCl2F2 + 2HCl

3.It was formerly widely used in fire extinguishers

Answer 2

Hey !!

IUPAC name of Freon is ''Dichlorodifluoromethane''

Preparation :- First of all we should know the number of fluorine atoms present in freon.

CF₄ (Freon - 14) ,CF₃Cl (Freon - 13) , CF₂Cl₂ (Freon - 12) , CFCl₃ (Freon - 11)

Out of all these freons, Freon - 12 is the most widely used refrigerant. It is manufacture from carbon tetrachloride by ''SWARTS REACTION''

  3 CCl₄ + 2 SbF₃ --(SbCl₅)--> 3 CCl₂F₂ (Freon-12) + 2 SbCl₃

USES OF FREON

Freon is an odourless , non-corrosive , non-toxic gas which is stable even at high temperature and pressures. It has low boiling point, low specific heat and can be easily liquefied by applying pressure at room temperature. It is therefore, widely used as a refrigerant ( cooling agent ) in refrigerators and air conditioners.

Good luck !!