Question

The formula of freon-$12$ is

• A. $ CClF_{3}$
• B. $CH _{2} Cl _{2}$
• C. $C C l_{2} F_{2}$
• D. $CH _{2} F _{2}$

Answer 1

Answer: (C)

Chlorofluoro compounds of methane and ethane are collectively called freons. These are further classified on the basis of number of fluorine atoms present in them.
Example : $C F_{4} ($ Freon-$14) C F_{3} Cl ($ Freon-$13) C F_{2} C l_{2} ($ Freon-12$) C F C l_{3} ($ Freon- $11)$