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Select the correct statement(s)....

Select the correct statement(s).

A

Solids with `F`-centres are paramagnetic.

B

Ferrimagnetic character of `Fe_(3)O_(4)` at room temperature changes to paramagnetic character at `850 K`.

C

Anti-ferrimagetic `V_(2)O_(3)` changes to paramagnetic at `150 K`.

D

Non-stoichiometric `Cu_(2)O` is a `p`-type semiconductor.

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A, B, C, D
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  6. In which of the following systeams interfacial angles alpha = gamma = ...

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  9. In the fluorite structure if the radius ratio is (sqrt(3)/(2)-1) how m...

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  11. If the radious of Cs^(o+) = 1.69 Å and Br^(Θ) = 1.95 Å, then which of ...

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  12. Given is the arrangement of atoms in a crystallographic plane. Which...

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  14. Position of TVs in closest packed structure is//are

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  15. Which of the following statements is/are correct about TVs in an fcc u...

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  16. Which of the following statements is//are correct about TVs in an fcc ...

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  17. Graphite

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  20. What is true about a bcc unit cell?

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