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The Finkelstein reaction takes place in what medium?

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in Chemistry – Class 12 by (188k points)
The Finkelstein reaction takes place in what medium?

(a) Concentrated HCl

(b) Concentrated H2SO4

(c) Dry acetone

(d) Water

The question was asked in an interview for job.

Enquiry is from Methods of Preparation of Haloalkanes topic in portion Haloalkanes and Haloarenes of Chemistry – Class 12

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The correct choice is (c) Dry acetone

To explain I would say: When the alkyl bromide/chloride reacts with sodium iodide in dry acetone, the NaBr or NaCl formed gets precipitated in dry acetone. This facilitates the forward reaction according to Le Chatelier’s Principle.

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