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Compound YBa(2)Cu(3)O(7) is a super cond...

Compound `YBa_(2)Cu_(3)O_(7)` is a super conductor The O.N. of the copper in the compound will be : [O.No. of Y = `+3`]

A

`+7//3`

B

zero

C

`+2`

D

`+1`

Text Solution

Verified by Experts

The correct Answer is:
A
`yBa_(2)Cr_(3)O_(7)`
`+3+2(2)+3x-2(7)=0`
`x=(7)/(3)`
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ALLEN-REDOX REACTIONS-Exercise - 1
  1. -1//3 oxidation state of nitrogen will be obtained in case of :

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  2. Oxidation number of Fe in Fe(3)O(4)are:

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  3. Compound YBa(2)Cu(3)O(7) is a super conductor The O.N. of the copper i...

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  4. Which one of the following is a redox reaction ?

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  5. Which of the following is not a redox change ?

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  6. In the context of the reaction, 4Fe+3O(2)rarr4Fe^(3+)+6O^(2-) , whic...

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  7. In the reaction, Cl(2)+OH^(-)rarrCl^(-)+ClO(4)^(-1)+H(2)O, chlorine ...

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  8. Which is a redox reaction :

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  9. Which of the following examples does not represent disproportionation ...

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  10. The decomposition of KClO(3) to KCl and O(2) on heating is an example ...

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

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

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

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  14. A reducing agent is a substance Which can:

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

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

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

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

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

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