In the reaction `C_(2)H_(5)OH+HX overset(ZnX_(2))rarr C_(2)H_(5)X`, the order of the reactivity of HX is

Options

A. `HBr gt Hl gt HCl`
B. `Hl gt HCl gt HBr`
C. `Hl gt HBr gt HCl`
D. `HCl gt HBr gt Hl`

Answer

C

Explanation

Since, the tendency of donate an electron pair to the carbon atom of the halide ions decreases in the order, `r^(-) gt Br^(-) gt Cl^(-)`, the order of reactivity of the halogen acids decreases in the same order, i.e. `Hl gt HBr gt HCl`.