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प्रश्न
Out of Mn3+ and Cr3+, which is more paramagnetic and why ?
(Atomic nos. : Mn = 25, Cr = 24)
उत्तर १
Mn3+ has four unpaired electrons (d4) in its valence shell whereas Cr3+ (d3) has three unpaired electrons. Thus, Mn3+ is more paramagnetic than Cr3+.
उत्तर २
Mn+3 = [Ar] 4s0 3d4 (4 unpaired e-)
Cr+3 = [Ar] 4s0 3d3 (3 unpaired e-)
Mn+3 has more no. of unpaired e- than Cr+3
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संबंधित प्रश्न
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| Column I (Property) | Column II (Metal) | |
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| upto +7 oxidation state | (c) \[\ce{Os}\] | |
| (iii) | 3d block element with highest melting point | (d) \[\ce{Fe}\] |
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