Which reagent is used to prepare fluoromethane by Swartz reaction.

Options

A. `CaF_(2)`
B. `Ag_(2)S`
C. `CoF_(2)`
D. `Hg_(2)F_(2)`

Answer

D

Explanation

[It is `Hg_(2)F_(2)`], Fluoromethane is obtained by reaction of bromomethane or chloromethane with metallic fluorides like `AgF, Hg_(2) F_(2), CoF_(2)` or `SbF_(3)`.
This reaction is called .Swartz reaction..
`underset("methane")underset("Brom")(2CH_(3)Br)+Hg_(2)F_(2)to underset("methane")underset("Fluoro")(3CH_(3)F)+Hg_(2)Br_(2)`