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- #NCERT
- #Chemistry
- #Chemistry Part I Textbook for Class XII
- #The d and f block elements
- #CBSE 12 Class
8.19 Compare the stability of +2 oxidation state for the elements of the first transition series.
Answers (1)
According to our observation, except scandium, all other elements of the first row show a +2 oxidation state. Mn shows the maximum oxidation state as shown in the table. On moving from to
the number of oxidation states increases but from
to
the number of oxidation states decreases due to a decrease in unpaired electrons. The stability of the +2 oxidation state increases on moving from
to
due to an increase in the difficulty level of removal of the third electron from d -orbital.
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