Electrochemistry 1 Question 17
«««< HEAD
17. The standard reduction potential values of three metallic cations, $X, Y, Z$ are $0.52,-3.03$ and $-1.18 \mathrm{~V}$ respectively. The order of reducing power of the corresponding metals is
======= ####17. The standard reduction potential values of three metallic cations, $X, Y, Z$ are $0.52,-3.03$ and $-1.18 \mathrm{~V}$ respectively. The order of reducing power of the corresponding metals is
3e0f7ab6f6a50373c3f2dbda6ca2533482a77bed (a) $Y>Z>X$
(b) $X>Y>Z$
(c) $Z>Y>X$
(d) $Z>X>Y$
$(1998,2 \mathrm{M})$
Show Answer
Answer:
Correct Answer: 17. (b)
Solution:
- Lower the value of $E^{\circ}$, stronger the reducing agent.
Reducing power:
$Y\left(E^{\circ}=-3.03 \mathrm{~V}\right)>Z\left(E^{\circ}=-1.18 \mathrm{~V}\right)>X\left(E^{\circ}=0.52 \mathrm{~V}\right)$.
