Tardigrade
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Tardigrade
Question
Chemistry
Consider the following electrodes P = Zn 2+(0.0001 M ) / Zn Q = Zn 2+(0.1 M ) / Zn R = Zn 2+(0.01 M ) / Zn S = Zn 2+(0.001 M ) / Zn E ° Zn / Zn 2+=-0.76 V Electrode potentials of the above electrodes in volts are in the order
Q. Consider the following electrodes
P
=
Z
n
2
+
(
0.0001
M
)
/
Z
n
Q
=
Z
n
2
+
(
0.1
M
)
/
Z
n
R
=
Z
n
2
+
(
0.01
M
)
/
Z
n
S
=
Z
n
2
+
(
0.001
M
)
/
Z
n
E
∘
Z
n
/
Z
n
2
+
=
−
0.76
V
Electrode potentials of the above electrodes in volts are in the order
4346
158
KCET
KCET 2021
Electrochemistry
Report Error
A
P
>
S
>
R
>
Q
30%
B
S
>
R
>
Q
>
P
29%
C
Q
>
R
>
S
>
P
25%
D
P
>
Q
>
R
>
S
16%
Solution:
Electrode potential is directly proportional to concentration of
Z
n
2
ions.