Electrochemistry - Result Question 17
####17. The standard reduction potential values of three metallic cations, $X, Y, Z$ are $0.52,-3.03$ and $-1.18 V$ respectively. The order of reducing power of the corresponding metals is
(a) $Y>Z>X$
(b) $X>Y>Z$
(c) $Z>Y>X$
(d) $Z>X>Y$
$(1998,2 M)$
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Answer:
Correct Answer: 17. (b)
Solution:
- Lower the value of $E^{\circ}$, stronger the reducing agent.
Reducing power:
$Y\left(E^{\circ}=-3.03 V\right)>Z\left(E^{\circ}=-1.18 V\right)>X\left(E^{\circ}=0.52 V\right)$.
