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प्रश्न
Out of [CoF6]3- and [Co(en)3]3+, which one complex is
(i) paramagnetic
(ii) more stable
(iii) inner orbital complex and
(iv) high spin complex
(Atomic no. of Co = 27)
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उत्तर
Co (Z=27)=1s2 2s2 2p6 3s2 3p6 4s2 3d7
Co+3 =1s2 2s2 2p6 3s2 3p6 3d7
F- is weak field ligand:
[CoF6]3-
(i) [CoF6]3- is paramagnetic due to the presence of four unpaired electrons
(ii) [Co(en)3]3+ is more stable due to chelation
(iii) [Co(en)3]3+ forms inner orbital complex (d2sp3)
(iv) [CoF6]3+ Forms high spin complex (sp3d2)
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संबंधित प्रश्न
Iron (z=26) is highly ferromagnetic. Explain.
Write the type of magnetism observed when the magnetic moments are oppositely aligned and cancel out each other.
Explain why:
(i) Transition elements form coloured compounds.
(ii) Interhalogen compounds are more reactive than their constituent elements.
(iii) Cu+ is diamagnetic but Cu2+ is paramagnetic. (Z = 29)
Compare the properties of soft and hard ferromagnetic materials.
Substances that are strongly attracted by the applied magnetic field and can be permanently magnetized are ____________.
Which of the following arrangements shows schematic alignment of magnetic moments of antiferromagnetic substances?
Which of the following statements is not true?
Which of the following statements are correct?
- Electric monopoles do not exist whereas magnetic monopoles exist.
- Magnetic field lines due to a solenoid at its ends and outside cannot be completely straight and confined.
- Magnetic field lines are completely confined within a toroid.
- Magnetic field lines inside a bar magnet are not parallel.
- χ = -1 is the condition for a perfect diamagnetic material, where x is its magnetic susceptibility.
Match items of List - I with those of List - II:
| List - I | List - II | ||
| (Property) | (Example) | ||
| (A) | Diamagnetism | (i) | MnO |
| (B) | Ferrimagnetism | (ii) | O2 |
| (C) | Paramagnetism | (iii) | NaCl |
| (D) | Antiferromagnetism | (iv) | Fe3O4 |
Choose the most appropriate answer from the options given below:
The metal complex ion that is paramagnetic is ______.
(Atomic number of Fe = 26, Cu = 29, Co = 27 and Ni = 28)
