Question

A gas $X$ at $1$ atm pressure is bubbled through a solution containing a mixture of $1M$ $Y^{-}$ ions and $1M$ $Z^{-}$ ions at ${25}^{o}C$. If reduction potentials of $Z^{-}>Y^{-}$; $X>Z$ then

• A. $Y$ will oxidise $Z$ and not $X$
• B. $Y$ will oxidise $X$ and not $Z$
• C. $Y$ will oxidise $X$ and $Z$
• D. $Y$ will reduce both $X$ and $Z$

Answer 1

The correct option is D $Y$ will reduce both $X$ and $Z$

Reduction potential of $X>Z>Y$
As reduction potential of $Y$ is lowest, it both will get oxidised by $X$ and $Z$ that means it will reduce both $X$ and $Z$.