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In the compound Y Ba2Cu3O7 which shows s...

In the compound `Y Ba_2Cu_3O_7` which shows super conductivity, what is the oxidation state of Cu? Assume that the rare earth element yttrium is in its usual +3 oxidation state.

A

`+ 7/3`

B

`-7/3`

C

`5/3`

D

`-5/3`

Text Solution

Verified by Experts

The correct Answer is:
A
`(Y Ba_2 Cu_3 O_7) : 3 + (2 xx 2) + 3x - 14 =0 , therefore x = + (7)/(3)`
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