Question

By which reaction Freon-12 is manufactured from tetrachloromethane?

• A. Finkelstein reaction
• B. Grignard reaction
• C. Stephen reaction
• D. Swarts reaction

Hint:

Swarts reaction is specifically used to prepare alkyl fluorides from alkyl chlorides or bromides using metal fluorides. It is commonly used in the preparation of refrigerants like Freon.

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
Freon-12 ($CCl_2F_2$) is a chlorofluorocarbon. The synthesis of alkyl fluorides from alkyl chlorides/bromides using metal fluorides is a specific type of halogen exchange.
Step 2: Formula Application:
$CCl_4 + 2SbF_3 \xrightarrow{\text{catalyst}} CCl_2F_2 + 2SbF_2Cl$.
Step 3: Explanation:
The Swarts reaction uses inorganic fluorides like $AgF$, $Hg_2F_2$, $CoF_2$, or $SbF_3$ to replace other halogens with Fluorine.
Step 4: Final Answer:
The manufacturing process is the Swarts reaction.