Small quantities of compounds TX, TY and TZ are put into separate test tubes containing X, Y and Z solutions. TX does not react with any of these. TY reacts with both X and Z. TZ reacts only with X. The decreasing order of ease of oxidation of the anions `X^(-),Y^(-) and Z^(-)` is

Explanation

since TX not react with any of the solution it means that X is least easily oxidized since TY reacts with both X and Z i.e `Y^(-)+XrarrX^(-)+Yand Y^(-)+Z rarrZ^(-)+Y` therefore `Y^(-)` is most easily oxidized
since TZ reacts with only X i.e `Z^(-)+X rarr X^(-) +Z` therefore `Z^(-)` is more easily oxidized than `X^(-)` combining all the reult the decreasing order of oxidationn of anons follows the order `Y^(-) gt Z^(-) gt x^(-)`