Question:
Freon 12 is manufactured from CCl$_4$ by
Freon 12 is manufactured from CCl$_4$ by
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Swarts reaction = halogen exchange → prepares fluorocarbons (Freons).
Updated On: May 2, 2026
- Wurtz reaction
- Swarts reaction
- Fittig reaction
- Wurtz-Fittig reaction
- Sandmeyer reaction
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The Correct Option is B
Solution and Explanation
Concept: Halogen exchange reactions
---
Step 1: Identify Freon-12
Freon-12 = CCl$_2$F$_2$ ---
Step 2: Starting compound
CCl$_4$ → all Cl atoms We need to replace some Cl by F. ---
Step 3: Reaction type
Swarts reaction:
• Exchange of Cl/Br with F using metal fluorides (SbF$_3$, AgF) ---
Step 4: Conversion
\[ CCl_4 \xrightarrow{SbF_3} CCl_2F_2 \] --- Final Answer: \[ \boxed{\text{Swarts reaction}} \]
---
Step 1: Identify Freon-12
Freon-12 = CCl$_2$F$_2$ ---
Step 2: Starting compound
CCl$_4$ → all Cl atoms We need to replace some Cl by F. ---
Step 3: Reaction type
Swarts reaction:
• Exchange of Cl/Br with F using metal fluorides (SbF$_3$, AgF) ---
Step 4: Conversion
\[ CCl_4 \xrightarrow{SbF_3} CCl_2F_2 \] --- Final Answer: \[ \boxed{\text{Swarts reaction}} \]
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