Tardigrade
Tardigrade - CET NEET JEE Exam App
Exams
Login
Signup
Tardigrade
Question
Chemistry
The standard reduction potentials of Mg , Zn , Ni , H 2, Cu and Ag are -2.37,-0.76,-0.25,0.00,0.034 and 0.80 volt respectively. Which one of the following cells has maximum voltage?
Q. The standard reduction potentials of
M
g
,
Z
n
,
N
i
,
H
2
,
C
u
and
A
g
are
−
2.37
,
−
0.76
,
−
0.25
,
0.00
,
0.034
and
0.80
volt respectively. Which one of the following cells has maximum voltage?
1499
225
Redox Reactions
Report Error
A
M
g
+
2
A
g
+
→
M
g
2
+
+
2
A
g
B
C
u
2
+
+
H
2
→
C
u
+
2
H
+
C
N
i
+
C
u
2
+
→
N
i
2
+
+
C
u
D
Z
n
+
2
A
g
+
→
Z
n
2
+
+
2
A
g
Solution:
M
g
+
2
A
g
+
→
M
g
2
+
+
2
A
g
E
ce
ll
∘
=
E
c
−
E
a
=
0.80
−
(
−
2.37
)
=
+
3.17
V
C
u
2
+
+
H
2
→
C
u
+
2
H
+
E
ce
ll
∘
=
0.034
−
0
=
+
0.034
V
N
i
+
C
u
2
+
→
N
i
2
+
+
C
u
E
ce
ll
∘
=
0.034
−
(
−
0.25
)
=
0.284
V
Z
n
+
2
A
g
+
→
Z
n
2
+
+
2
A
g
E
ce
ll
∘
=
0.80
−
(
−
0.76
V
)
=
1.56
V