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NEETChemistryCoordination Compounds

Which element's oxidation number is being referred to in the paragraph?

Options

  1. ANitrogen
  2. BCarbon
  3. CCopper
  4. DOxygen

Correct answer

C. Copper

Step-by-step solution

The paragraph refers to the oxidation number of copper in complex ions like [Cu(CN) 4 ]3–.

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