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Question 65

Match List-I with List-II.

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Choose the correct answer from the options given below : 

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  • A. Finkelstein reaction This is a classic halogen exchange reaction used to prepare alkyl iodides. An alkyl chloride or bromide is reacted with sodium iodide ($$\text{NaI}$$) in dry acetone.

    $$\text{R-X} + \text{NaI} \xrightarrow{\text{acetone}} \text{R-I} + \text{NaX} \downarrow$$

    • Match: A $$\rightarrow$$ III
  • B. Swarts reaction This is the preferred method for synthesizing alkyl fluorides by heating alkyl chlorides or bromides in the presence of metallic fluorides like $$\text{SbF}_3$$, $$\text{AgF}$$, $$\text{Hg}_2\text{F}_2$$, or $$\text{CoF}_2$$.
    • Match: B $$\rightarrow$$ I
  • C. Sandmeyer's reaction This reaction is used to synthesize aryl halides from aryl diazonium salts using copper salts as catalysts, such as $$\text{Cu}_2\text{Cl}_2$$ (or $$\text{Cu}_2\text{Br}_2$$).
    • Match: C $$\rightarrow$$ IV
  • D. Fittig reaction This reaction involves the coupling of two aryl halides when treated with sodium ($$\text{Na}$$) in dry ether to form diphenyl derivatives.
    • Match: D $$\rightarrow$$ II

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