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Which of the following compounds is meta...

Which of the following compounds is metallic and ferromagnetic ?

A

`TiO_2`

B

`CrO_2`

C

`VO_2`

D

`MnO_2`

Text Solution

Verified by Experts

The correct Answer is:
B
`CrO_2` is metallic and ferromagnetic.
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MODERN PUBLICATION-SOLID STATE-COMPETITION FILE - OBJECTIVE TYPE QUESTIONS (B. MULTIPLE CHOICE QUESTIONS)(JEE(MAIN) & OTHER STATE BOARDS ENGINEERING ENTRANCE)
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  2. The contribution of a particle at the edge centre of a particular unit...

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  3. Which of the following compounds is metallic and ferromagnetic ?

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  4. The corrent statement regarding defects is solids in solids is

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  5. In a face centred cubic arrangement of A and B atoms whose A atoms are...

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  6. A metal crystallises in a face centred cubic structure. If the edge le...

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  7. Edge length of cube is 300 pm. Its body diagonal would be:

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  8. An example of a non-stoichiometric oxide when heated is

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  9. A given metal crystallises out with a cubic structure having edge leng...

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  10. The number of atoms in 2.4 g of body centred cubic crystal with edge l...

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  11. Which among the following statement is true about Schottky defect ?

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  12. If a metal crystallises in bcc structure with edge length of unit cell...

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  13. At 100^(@)C, copper (Cu) has FCC unit cell structure will cell edge le...

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  14. Which premitive unit cell has unequal edge length (a != b != c) and al...

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  15. A compound of formula A(2)B(3) has the hcp lattice. Which atom forms t...

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  16. A solid having density of 9 xx 10^(3) kg m^(-3) forms face centred cub...

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  17. The radius of the largest shpere which fits properly at the centre of ...

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  18. Element 'B' forms ccp structure and 'A' occupies half of the octahedra...

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  19. Consider the bcc unit cells of the solids 1 and 2 with the position of...

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  20. The ratio of number of atoms present in a simple cubic body centred cu...

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