Question

explain frankelsten.reaction.with.an.example​

Answer 1

Answer:

SÑ2 reaction,,,,,,,,,,,,,

Answer 2

Finkelstein reaction: An SN2 reaction in which one halogen atom (the leaving group) is replaced by another halogen atom (the nucleophile)

The Finkelstein reaction named after the German chemist Hans Finkelstein, is an SN2 reaction (Substitution Nucleophilic Bimolecular reaction) that involves the exchange of one halogen atom for another. It is an equilibrium reaction, but the reaction can be driven to completion by exploiting the differential solubility of halide salts, or by using a large excess of the halide salt.

R–X   +   X′−   ⇌   R–X′   +   X−

In this example of the Finkelstein reaction, 1-chloro-2-phenylethane (a primary alkyl halide) is treated with sodium iodide (the nucleophile) to produce 1-iodo-2-phenylethane. Acetone is used as the solvent because NaI is soluble in acetone whereas NaCl is not, thus (via Le Chatelier's principle) shifting the equilibrium towards the right as NaCl precipitates out of the reaction mixture.

By---$K