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प्रश्न
The calculated spin only magnetic moment of Cr2+ ion is ______.
पर्याय
3.87 BM
4.90 BM
5.92 BM
2.84 BM
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उत्तर
The calculated spin only magnetic moment of Cr2+ ion is 4.90 BM.
Explanation:
The atomic number of chromium is 24. The electronic configuration of Cr is [Ar] 3d4. So the number of unpaired electrons (n) is 4.
μ = `sqrt(n(n + 2))`BM
= `sqrt(4(4 + 2))`
= `sqrt 24`
= 4.90 BM
संबंधित प्रश्न
Define the following term:
Ferromagnetism
Explain the following with suitable examples:
Ferrimagnetism
Explain the following with suitable examples:
Antiferromagnetism
Fe3O4 (magnetite) is an example of ___________.
Which of the following statements is not true?
The value of magnetic moment is zero in the case of antiferromagnetic substances because the domains:
(i) get oriented in the direction of the applied magnetic field.
(ii) get oriented opposite to the direction of the applied magnetic field.
(iii) are oppositely oriented with respect to each other without the application of magnetic field.
(iv) cancel out each other’s magnetic moment.
The correct order of bond strength is ______.
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:
Which one of the following compounds is diamagnetic and colourless?
