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One mole on iron [55.8 gm], when oxidise...

One mole on iron [55.8 gm], when oxidised to `+2` oxidation state gives up :

A

`1N_(A)` electron

B

`2N_(A)` electron

C

`3N_(A)` electron

D

`0.5` mole of electron

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The correct Answer is:
B
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ALLEN-REDOX REACTIONS-Exercise - 1
  1. The decomposition of KClO(3) to KCl and O(2) on heating is an example ...

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  2. Which of the following change represents a disproportionation reaction...

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  3. One mole on iron [55.8 gm], when oxidised to +2 oxidation state gives ...

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  4. How many electrons should X(2)H(4) liberate so that in the new compoun...

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  5. A reducing agent is a substance Which can:

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  6. The reaction of H(2)S+H(2)O(2) rarr S+2H(2)O manifests

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  7. If an element is in its lowest oxidation state, under proper condition...

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  8. In a reaction H(2)O("steam")+C("glowing") to CO+H(2)

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  9. The compound that can work both as an oxidising as well as reducing ag...

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  10. Reaction (A) S^(-2)+4H(2)O(2)rarrSO(4)^(2-)+4H(2)O (B) Cl(2)+H(2)O(2...

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  11. A compound contains atoms A, B and C. The oxidation number A is +2, of...

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  12. Equivalent weight of N(2) in the change N(2) rarr NH(3) is

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  13. Equivalent weight of NH(3) in the change N(2)rarrNH(3) is :

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  14. In the reaction, 2S(2)O(3)^(2-)+I(2)rarrS(4)O(6)^(2-)+2I^(-). The eq. ...

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  15. In the reaction VO+Fe(2)O(3) rarr FeO+V(2)O(5), the eq.wt. of V(2)O(5)...

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  16. In the reaction, I(2)+2S(2)O(3)^(2-) rarr 2I^(-)+S(4)O(6)^(2-). Eq...

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  17. Molecular weight of KBrO(3) is M. What is its equivalent weight, if th...

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  18. In the reaction A^(-n2)+xe^(-)rarrA^(-n1) . Here, x will be :

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  19. What would be the equivalent weight of the reductant in the reaction :...

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  20. The eq. wt. of Na(2)S(2)O(3) as reductant in the reaction, Na(2)S(2)...

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