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Which of the following statement(s) is n...

Which of the following statement(s) is not true?

A

Ferromagnetic substances cannot be magnetised permanently

B

Paramagnetic substances are weakly attracted by magnetic field

C

Pairing of electrons cancels their magnetic moment in the diamagnetic substances

D

The domains in antiferromagnetic substances are oppositely oriented with respect to each other

Text Solution

Verified by Experts

The correct Answer is:
A
A Ferromagnetic substances can be magnetised to form permanent magnets.
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BRILLIANT PUBLICATION-SOLID STATE-LEVEL-I
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  2. Why is Frenkel defect not found in alkali metal halides?

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  3. Which of the following statement(s) is not true?

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  4. Which type of magnetic behaviour, MgFe(2)O(4) is exhibited?

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  5. Triclinic crystal has the following unit cell parameters:

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  6. Molybdenum (At. wt. = 96g "mol"^(-1)) crystallizes as bcc crystal. If ...

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  7. The atomic radius of strontium (Sr) is 215 pm and it crystallizes with...

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  8. Which one of the following schemes of ordering close packed sheets of ...

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  9. Ina cubic unit cell, seven of the eight corners are occupied by atoms ...

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  10. An alloy of copper, silver and gold is found to have copper constituti...

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  11. Which of the following statements for crystals having Schottky defect ...

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  12. Which of the following defects does KBr show?

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  13. Select the incorrect statement:

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  14. The composition of a sample of Wustite is Fe(0.93)O. What is the perce...

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  15. The most unsymmetrical and symmetrical systems are respectively:

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  19. An element has a body centred cubic structure with a cell edge of 288 ...

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  20. An element ‘A’ has face-centred cubic structure with edge length equal...

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