Question

The reduction potential values of $X, Y$ and $Z$ are $ -3.05\,V,-0.44\,V $ and $ -0.83\,V $ respectively. Which of the following order is correct with respect to their reducing property?

• A. $ X>Y>Z $
• B. $ X>Z>Y $
• C. $ Y>Z>X $
• D. $Z>Y>X $

Answer 1

Answer: (B)

More negative value of reduction potential shows the stronger reducing nature.
The order of reduction potential values (with negative sign) of given elements is
$\underset{(-3.05)}{X} > \underset{(-0.83 V )}{Z} > \underset{(-0.44 V )}{Y}$
Thus, the order of reducing property is $X>Z>Y$