In H.V.Z reaction, in presence of small amount of phosphorus, aliphatic carboxylic acids containing \(\alpha\)-hydrogen atom reacts with \(\mathrm{Cl}_2, \mathrm{Br}_2\) to yield an acid halide in which \(\alpha\)-hydrogen has been replaced by halogen. So, trichloroethanoic acid, among the given options which do not contains \(\alpha\)-hydrogen atom, will not give \(\mathrm{HVZ}\) reaction.