SELECT * FROM question_mgmt as q WHERE id=2093 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=3 AND subId=9 AND chapterId=63 and ex_no='2' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 12th chemistry The d-and f-Block Elements what may be the stable oxidation state of the tran

Question:

What may be the stable oxidation state of the transition element with the following d electron configurations in the ground state of their atoms :

3d3, 3d5, 3d8 and 3d4?

Answer:

  Electronic configuration in ground state Stable oxidation states
(i)

3d3 (Vanadium)

+2, +3, +4 and +5
(ii)

3d5 (Chromium)

+3, +4, +6
(iii)

3d5 (Manganese)

+2, +4, +6, +7
(iv)

3d8 (Cobalt)

+2, +3
(v)

3d4

There is no3d4 configuration in ground state.

 


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