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Question

The compound YBa2Cu3O7, which shows super conductivity has copper in oxidation state of 73.
Assume that the rare earth element ytterbium is in its usual +3 oxidation state.
If true enter 1, else enter 0.
  1. 1

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Solution

The correct option is A 1
The compound YBa2Cu3O7, which shows super conductivity has copper in oxidation state is 73.
Since the overall
charge on the complex is 0, the sum of oxidation states of all elements in
it should be equal to 0.
Assuming that the rare earth element ytterbium is in its usual +3 oxidation state,
+3+2(+2)+3(73)+7(2)=+3+4+714=0
Thus, the given statement is true.

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