Question

How will you identify Cr3+ and Mn2+ in a mixture? ​

Answer 1

Answer:

It is known that the value of becomes more negative down the series. As the chromium is present below in electrochemical series than Mn, so Mn has more positive value than Cr.

For elimination of one electron from , more energy is required due to its stable configuration. That is why third ionization energy of Mn is larger than Cr.

Answer 2

Answer:

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