11. |
Which of the following compounds shows metal deficiency defect ?
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Answer:
Option (a) |
12. |
Which of the following elements is a semiconductor ?
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Answer:
Option (d) |
13. |
Which type of semiconductor is obtained by doping Si with Bi ?
|
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Answer:
Option (a) |
14. |
With which element, the conductivity of ReO3 is matching ?
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Answer:
Option (a) |
15. |
Which of the following will be paramagnetic ?
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Answer:
Option (b) |
16. |
Which theory is useful in explaining electrical conductivity in conductors and semiconductors ?
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Answer:
Option (c) |
17. |
_____ of the following is a crystalline solid.
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Answer:
Option (d) |
18. |
Which of the following is an example of a covalent solid ?
|
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Answer:
Option (a) |
19. |
Select the non-conductor substance from the following.
|
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Answer:
Option (b) |
20. |
Select highest electrical conductor and thermal conductor from the following.
|
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Answer:
Option (b) |