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Given below are the half -cell reactions...

Given below are the half -cell reactions
`Mn^(2+)+2e^(-) to Mn, E^(@)=-1.18V`
`Mn^(3+)+e^(-) to Mn^(2+), E^(@)=+1.51 V`
The `E^(@)` for `3Mn^(2+)to Mn+2Mn^(3+)` will be _________.

A

`-2.69 V`, the reaction will not occur

B

`-2.69V`, the reaction will occur

C

`-0.33V`, the reaction will not occur

D

`-0.33V` , the reaction will occur

Text Solution

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The correct Answer is:
A
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TARGET PUBLICATION-MODEL QUESTION PAPER-MODEL QUESTION PAPER-II
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  2. Which of the following compounds does NOT exist ?

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  3. Which of the following compound can occur in enatiomeric form ?

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  4. The only aldehyde that undergoes haloform reaction is .

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  5. The number of moles of Ca(OH)(2) which contains 4 moles of oxygen ato...

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  6. The degree of dissociation (alpha) of a weak electrolyteA(x)B(y) is re...

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  7. Which of the following alcohols CANNOT be preapred by the action of a ...

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  8. Which reagent can be used to estimate Ni^(2+) ions ?

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  9. Experimentally determined molecular weight of acetic acid in benzene ,...

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  10. To precipitate negatively charged sol, which cation is the most effec...

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  11. The magnetic moment of a complex ion is 1.73 BM. The complex ion is .

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  12. An aqueous solution freezes at 272.814 K . The boiling point of the sa...

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  13. Chlorine dissolves in water in absence of sunlight and at ordinary te...

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  14. In C(60) carbon atoms from .

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  15. Acetone and benzene can be seperated from their mixture by .

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  16. For making tyres,is added to natural rubber during vulcanization.

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  17. If C(s)+O(2)(g)to CO(2)(g)+94.2 Kcal H(2)(g)+(1)/(2)O(2)(g)to H(2)...

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  18. Hybridisation of O-atom in alcohol is .

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  19. The unit of entropy is

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  20. The IUPAC name of above compound is .

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  21. in transition elements, the oribitals partly or incompletely filled by...

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