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Pure silicon and germanium at OK are...

Pure silicon and germanium at OK are

A

conductors

B

Insulators

C

Semiconductors

D

May be any one of the above

Text Solution

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The correct Answer is:
B
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  2. Which of the following is an ferromagnetic and metallic compound?

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  3. Pure silicon and germanium at OK are

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  4. The liquefied metal expanding on solidification is

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  6. The crystal system of a compound with unit cell diemension a=0.387,b=...

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  7. In a solid AB having the NaCl structure, A atoms occupy the corners of...

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  8. How many unit cells are present in a cube shaped ideal crystal of NaCl...

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  9. In the crystals of which of the following ionic compounds would you ex...

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  10. The hardest substance among the following is : Graphite, Titanium, ...

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  11. The fraction of the total volume occupied by the atoms present in a si...

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  12. If 'a' stands for the edge length of the cubic systems : Simple cubic,...

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  13. Total volume of atoms present in face centred cubic unit cell of a met...

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  14. A compound formed by elements 'A' and 'fB' crystallises in the cubic ...

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  15. In a tetragonal crystal

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  16. The percentage of the available space occupied in a hexagonal close pa...

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  17. The C0ordination number of a metal crystallizing in a hexagonal close ...

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  18. What is the C0ordination number of sodium in Na2O.

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