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In the compound YBa(2)Cu(3)O(7) which sh...

In the compound `YBa_(2)Cu_(3)O_(7)` which shows superconductivity, what is the oxidation state of `Cu` ?
Assume that the rare earth element yttrium is in its usual `+3` oxidation state.

A

`3//7`

B

`7//3`

C

`3`

D

`7`

Text Solution

Verified by Experts

The correct Answer is:
B
`Ba_(2)Cu_(3)O_(7)`
`3+2xx2+3x-(2xx7)=0`
`3+4+3x-14=0`
`3x=7`
`x=(7)/(3)`
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A2Z-REDOX REACTIONS-Section D - Chapter End Test
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  3. In the compound YBa(2)Cu(3)O(7) which shows superconductivity, what is...

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  5. Which one of the following reactions is not an example of redox reacti...

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  6. For the reaction, C+O(2)rarrCO(2), DeltaH=-393 J 2Zn+O(2) rarr 2ZnO,...

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  7. In the reaction B(2)H(6)+2KOH+2Xrarr 2Y+6H(2), X and Y are respectivel...

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  8. In a balanced equation H(2)SO(4)+xHI rarr H(2)S+YI(2)+zH(2)O, the valu...

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  9. MnO(4)^(2-) (1 mole) in neutral aqueous medium is disproportionate to

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  10. The conductivity of a saturated solution of BaSO4 is 3. 06 xx 10^(-6)...

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  12. When sodium metal is dissolved in liquid ammonia, blue colour solution...

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  13. Which of the following is redox reaction ?

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  14. In which of the following reactions H(2)O(2) is a reducing agent?

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  15. Which is the best description of the behaviour of bromine in the react...

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  16. Which of the following substances acts as an oxidising as well as a re...

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  17. When K(2)Cr(2)O(7) is converted to K(2)CrO(4), the change in the oxida...

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  18. Oxidation state of chlorine in perchloric acid is

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  19. The oxidation number of S in H(2)S(2)O(8) is

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  20. The oxidation state of nitrogen in N(3)H is

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