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Finkelstein Reaction

Mediumchemistry

In Finkelstein reaction, the conversion of R-Cl to R-I is facilitated by using NaI in acetone because:

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About This Question

Subject
chemistry
Chapter
organic compounds containing halogens
Topic
finkelstein reaction
Difficulty
Medium
Year
2025
Tags
FinkelsteinHalide ExchangeLe Chatelier Principle

Solution

Correct Answer:

NaCl precipitates out in acetone

The reaction proceeds by nucleophilic substitution where I- replaces Cl-. In acetone, NaI is soluble but NaCl is not, so NaCl precipitates and removes product-side salt from solution. This drives equilibrium forward by Le Chatelier's principle, making the conversion efficient.

This medium difficulty chemistry question is from the chapter organic compounds containing halogens, covering the topic of finkelstein reaction. It appeared in the 2025 exam.

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