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Using the standard electrode potential, ...

Using the standard electrode potential, find out the pair between which redox reactions is not possible ?
`E_(Fe^(+3)//Fe^(+2))^(Ө)=+0.77"volt",E_(I_(2)//I^(-))^(Ө)=+0.54"volt"`
`E_(Cu^(+2)//Cu)^(Ө)=+0.34"volt",E_(Ag^(+)//Ag^(-))^(Ө)=+0.80"volt"`

A

`Fe^(+3)andI^(-)`

B

`Ag^(+)andCu`

C

`Fe^(+3)andCu`

D

`AgandFe^(+3)`

Text Solution

Verified by Experts

The correct Answer is:
D
If value of `E_("cell")^(Ө)` becomes negative, that reaction is not possible.
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Calculate the equilibrium constant for the reaction at 298K. Zn(s) +Cu^(2+)(aq) hArr Zn^(2+)(aq) +Cu(s) Given, E_(Zn^(2+)//Zn)^(@) =- 0.76V and E_(Cu^(2+)//Cu)^(@) = +0.34 V

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KUMAR PRAKASHAN-REDOX REACTIONS-SECTION-D (NCERT EXEMPLAR SOLUTION MULTIPLE CHOICE QUESTIONS)
  1. Which of the following is not an example of redox reaction ?

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  2. The more positive the value of E^(Ө), the the greater is the tendency...

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  3. E^(Ө) values of some redox couples are given below, On the basis of th...

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  4. Using the standard electrode potential, find out the pair between whic...

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  5. Thiosulphate reacts differently with iodine and bromine in the reactio...

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  6. The oxidation number of an element in a compound is evaluated on the b...

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  7. In which of the following compounds, an element exhibits two different...

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  8. Which of the following arrangements represent increasing oxidation num...

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  9. The largest oxidation number exhibited by an element depends on its ou...

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  10. Identify disproportionation reaction.

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  11. Which of the following elements does not show disproportionation tende...

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  12. Which of the following statement(s) is/are not true about the followin...

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  13. Identify the correct statement(s) in relation to the following reactio...

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  14. The exhibition of various oxidation states by an element is also relat...

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  15. Identify the correct statements with reference to the given reaction ...

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  16. Which of the following electrodes will act as anodes, which connected ...

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