Q. Small quantities of solutions 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 with X. The decreasing order of ease of oxidation of the anions $X^{-},\ Y^{-},Z^{-}$ is
A) $Y^{-},\ Z^{-},X^{-}$
B) $Z^{-},\ X^{-},Y^{-}$
C) $Y^{-},\ X^{-},Z^{-}$
D) $X^{-},\ Z^{-},Y^{-}$
Explanation
(a)
$Oxidizing\ tensdncy\ \propto \ \frac{1}{electrode\ potential}\$
$TX\ \rightarrow \ No\ reaction$
$TY\ \rightarrow \ X,\ Z$
$TZ\ \rightarrow \ X$
⇒ Order of electrode potential is
$TY\ < \ TZ\ < \ TX$
⇒ Order of oxidation of the anion is
$Y^{-} > \ Z^{-} > \ X^{-}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.