1. The compound `YBa_2Cu_3O_7`,which shows superconductivity, has copper in oxidation state ....................Assume t

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Q 1169367215.     1. The compound `YBa_2Cu_3O_7`,which shows superconductivity, has copper in oxidation state ....................Assume that the rare earth element yttrium is in its usual +3 oxidation state.

JEE 1994
A

`4/3`

B

`7/3`

C

`2`

D

`3`

HINT


Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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