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प्रश्न
Why +2 oxidation state of manganese is more stable?
उत्तर
Mn
Atomic number = 25
Mn2+
No. of electrons = 23
Electronic configuration of Mn2+ = [Ar]3d54s0
(1) It is seen from the electronic configuration of Mn2+ that d-orbital is half filled.
(2) A half filled d-orbital is more stable as compared to empty or partially filled orbital.
(3) Hence Mn2+ ion is more stable oxidation state of manganese.
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संबंधित प्रश्न
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Answer the following: Write the element which shows maximum number of oxidation states. Give reason.
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|
`E_((M^(2+)/M)` |
Cr | Mn | Fe | Co | Ni | Cu |
| -0.91 | -1.18 | -0.44 | -0.28 | -0.25 | -0.34 |
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Column II (Colour) |
| (i) \[\ce{FeSO2.7H2O}\] | (a) Green |
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| List - I | List - II | ||
| (a) | \[\ce{[Fe(CN)6]^3-}\] | (i) | 5.92 BM |
| (b) | \[\ce{[Fe(H2O)6]^3+}\] | (ii) | 0 BM |
| (c) | \[\ce{[Fe(CN)6]^4-}\] | (iii) | 4.90 BM |
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| List - I | List - II | ||
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| (c) | \[\ce{[Fe(CN)6]^4-}\] | (iii) | 4.90 BM |
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