JEE · NEET Previous Year Question

Amongst the following, identify the species with an atom in +6 oxidation state:

Topic: JEE PYQ

Answer: D. Full step-by-step solution below.

  1. A
  2. B[Cr(CN)]
  3. C
  4. D

Correct answer: D

Solution

(d) Since the overall charge on the complex is -1, the sum of oxidation states of all elements in it
should be equal to -1.
Therefore,
or,
Similarly,
The oxidation state of in and in is and +6 respectively.
Hence, the species with an atom in +6 oxidation state is .

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