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What conclusion can be obtained on the b...

What conclusion can be obtained on the basis of following electrochemical cell `M|M^(+)||X^(-)|X,E_(M^(+)|M)^(o)=0.44V and E_(X|X^(-))^(o)=0.33V`.

A

`M^(+)+X^(-) to M+X` is spontaneous reaction

B

`M+X to M^(+)+X^(-)` is spontaneous reaction

C

`E_(cell)=0.11V`

D

`E_(cell)=-0.11V`.

Text Solution

Verified by Experts

The correct Answer is:
A
`E_(M^(+)|M)^(o)=0.44V`
Cathode in half-cell: `underset(("Reactant"))(M^(+))+e^(-) to underset(("Product"))(M)` . . . Reduction
`therefore E_(M|M^(+))^(o)` (Oxidation potential)=-0.44 V
`E_(X|X^(-))^(o)=0.33V`
`X^(-) to X+e^(-)` (Oxidation) and
`M^(+)+e^(-) to M` (Reduction)
`thereforeo X^(-)+M^(+) to X+M` Reaction will occur itself.
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For the electrochemicl cell, M|M^(+)||X^(-)|X E_((M^(+)//M))^(@) = 0.44 V and E_((X//X^(-)))^(@) = 0.33 V From this data one can deduce that :

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Knowledge Check

  • Which of the following reaction can be possible with electrochemical cell by using E_(Cl_(2)|2Cl^(-))^(@)=1.36V and E_(Br_(2)|2Br^(-))^(@)=1.09V

    A
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    B
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