Question

\(\text{CH}_{3}\text{-CH}_{2}\text{-Cl}+\text{NaI}\xrightarrow{\text{acetone}}\text{CH}_{3}\text{-CH}_{2}\text{-I}+\text{NaCl}\downarrow\)
The above reaction is known as:

• A. Swartz reaction
• B. Finkelstein reaction
• C. Wurtz reaction
• D. Sandmeyer reaction

Hint:

Conversion of alkyl chloride or bromide to alkyl iodide with NaI in dry acetone is the Finkelstein reaction.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept
Halogen exchange reactions replace one halogen in an alkyl halide with another.

Step 2: Identify the reaction
Alkyl chloride reacts with NaI in dry acetone to give alkyl iodide, while NaCl precipitates because it is insoluble in acetone.
This drives the reaction forward and is the Finkelstein reaction.

Step 3: Compare the options
The Swarts reaction forms alkyl fluorides, the Wurtz reaction couples two alkyl halides and the Sandmeyer reaction uses diazonium salts, so the answer is the second option.

Final Answer:
The reaction is the Finkelstein reaction. \[ \boxed{\text{(B) }\text{Finkelstein reaction}} \]