Question

Finkelstein reaction is ______.

विकल्प

• CH₃CH₂CH₂Cl + Nal → CH₃CH₂CH₂I + NaCl

• CH₃CH₂CH₂I + NaCl → CH₃CH₂CH₂ − Cl + Nal

• CH₃ = CH₂ + H − I → CH₃CH₂CH₂I + CH₃CHICH₃

• CH₃CH₂CH₂Cl + NaBr → CH₃CH₂CH₂Br + NaCl

Answer 1

Finkelstein reaction is CH₃CH₂CH₂Cl + Nal → CH₃CH₂CH₂I + NaCl.

Explanation:

Halide exchange reaction is the Finkelstein reaction in which alkyl chloride is converted to alkyl iodide.

The classic Finkelstein reaction entails the conversion of an alkyl chloride or an alkyl bromide to an alkyl iodide by treatment with a solution of sodium iodide in dry acetone. Sodium iodide is soluble in acetone, and sodium chloride and sodium bromide are not.

The reaction is driven toward products according to Le Chatelier's principle due to the precipitation of the salt insoluble in acetone. For example, in this case, chloropropane can be converted to iodopropane:

CH₃CH₂CH₂Cl + Nal → CH₃CH₂CH₂I + NaCl.