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Which one is a reaction to prepare CCl2F2(freon-12) from CCl4?
Which one is a reaction to prepare CCl2F2(freon-12) from CCl4?
Updated On: Jul 13, 2024
- Wurtz Reaction
- Finkelstein
- Elimination Reaction
- Swartz Reaction
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The Correct Option is A
Solution and Explanation
The correct answer is option (A): Wurtz Reaction
Wutz reaction is a method for the formation of CCl₂F₂ from CCl₄CCl₂ will be formed as an intermediate, and upon further reaction with fluorine, dichlorodifluoromethane will be formed. When CCl₄ will react with a strong base, a Chloride ion will be removed from CCl₄ and thus form CCl₂. Later CCl₂ will react with fluorine to form CCl₂F₂. Wurtz reaction, which converts aldehydes and ketones into olefins (alkenes).
Wutz reaction is a method for the formation of CCl₂F₂ from CCl₄CCl₂ will be formed as an intermediate, and upon further reaction with fluorine, dichlorodifluoromethane will be formed. When CCl₄ will react with a strong base, a Chloride ion will be removed from CCl₄ and thus form CCl₂. Later CCl₂ will react with fluorine to form CCl₂F₂. Wurtz reaction, which converts aldehydes and ketones into olefins (alkenes).
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Concepts Used:
Preparation of Haloalkanes
- Preparation by Alcohols: By using alcohol, we can very easily prepare Haloalkane as when R-OH is reacted with a suitable reagent it will form R-X. The following reagents will help in the formation of the reactions:
- Halogen Acids (HX)
- Thionyl chloride (SOCl2)
- Phosphorous halides (PX5 or PX3)
- Preparation by Free Radical Halogenation: The formation of alkyl bromides and alkyl chloride is very much possible with the help of free radical halogenation, but as these radicals are highly reactive and non-specific in nature, they can result in the formation of a mixture of products. Though, it's not a preferred method for the preparation of haloalkanes. For example, free radical chlorination can result in the formation of a number of haloalkanes, which in turn makes it difficult to set apart a single product.
- Preparation by Alkenes: An electrophilic addition reaction can be used to transform an alkene into a haloalkane as alkene will react with HX to form R-X.
Read More: Haloalkanes and Haloarenes
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