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Byju's Answer
Standard XII
Chemistry
Electrochemical Cells, Galvanic Cells
Which one of ...
Question
Which one of the following is not the correct representation?
A
E
∘
c
e
l
l
=
Red. pot. of cathode
+
Oxid. pot. of anode
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B
E
∘
c
e
l
l
=
Red. pot. of cathode
−
Oxid. pot. of anode
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C
E
∘
c
e
l
l
=
Red. pot. of cathode
−
Red. pot. of anode
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D
E
∘
c
e
l
l
=
Oxid. pot. of cathode
+
Oxid. pot. of anode
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Solution
The correct option is
B
E
∘
c
e
l
l
=
Red. pot. of cathode
−
Oxid. pot. of anode
we have,
E
0
c
e
l
l
= red. potential of cathode + oxidation potential of anode
so, option B is incorrect representation of
E
0
c
e
l
l
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0
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Q.
E
0
c
e
l
l
=
E
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r
e
d
(
c
a
t
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)
+
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Q.
EMF of cell
(
E
∘
c
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)
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Q.
Consider the following relations for emf of an electrochemical cell :
(i) EMF of cell = (Oxidation potential of anode) - (Reduction potential of cathode)
(ii) EMF of cell = (Oxidation potential of anode) + (Reduction potential of cathode)
(iii) EMF of cell = (Reduction potential of anode) + (Reduction potential of cathode)
(iv) EMF of cell = (Oxidation potential of anode) - (Oxidation potential of cathode)
Which of the above relation(s) is correct?
Q.
Consider the following relations for emf of an electrochemical cell:
(i) EMF of cell = (Oxidation potential of anode) – (Reduction potential of cathode)
(ii) EMF of cell = (Oxidation potential of anode) + (Reduction potential of cathode)
(iii)) EMF of cell = (Reductional potential of anode) + (Reduction potential of cathode)
(
i
v
)
) EMF of cell = (Oxidation potential of anode) – (Oxidation potential of cathode)
Q.
Assertion :Anode is the electrode at which oxidation occurs and cathode is the electrode at which reduction occurs. Reason: Anode and cathode in electrochemical cells and electrolytic cells have opposite polarity.
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