Step 1: Understanding the reaction type.
In the Swarts reaction, alkyl halides (usually bromides) react with metallic fluorides to form alkyl fluorides. This reaction is a method of preparing fluorinated organic compounds.
Step 2: Analyzing the options.
(A) Sandmeyer reaction: The Sandmeyer reaction involves the substitution of halides in aromatic compounds using copper salts, not the preparation of alkyl fluorides.
(B) Wurtz reaction: The Wurtz reaction involves the coupling of alkyl halides using sodium metal, not fluorination.
(C) Swarts reaction: This is the correct reaction. The Swarts reaction involves the preparation of alkyl fluorides from alkyl bromides and metallic fluorides.
(D) Finkelstein reaction: The Finkelstein reaction involves the substitution of halides using alkali halides, not metallic fluorides.
Step 3: Conclusion.
The correct answer is (C) Swarts reaction.