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Which of the following is an amorphous s...

Which of the following is an amorphous solid

A

graphite

B

glass

C

Chrome alum

D

silicon carbide

Text Solution

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The correct Answer is:
B
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MODERN PUBLICATION-SOLID STATE-REVISION EXERCISES (OBJECTIVE QUESTIONS) (MULTIPLE CHOICE QUESTIONS)
  1. The appearance of colour in solid alkali metal halides is generally du...

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  2. In a body centred cubic structure, the space occupied is about

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  3. Some polar crystals when heated produce small electrical current. The ...

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  4. The empty space within hcp arrangment is

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  5. The crystal system in which a ne b ne c and the angles alpha ne beta n...

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  6. The number of Cl^(-) ions present around each Na^(+) ion in NaCl cryst...

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  7. To get a n- type semiconductor from silicon , it should be doped...

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  8. The fraction of volume occupied by atoms in a face centered cubic unit...

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  9. The percentage of empty space in a body centred cubic arrangement is :

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  10. To get p-type semiconductor , impurity to be added to silicon should h...

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  11. A ferromagnetic substance becomes a permanent magnet when it is placed...

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  12. The presence of F-centres in a crystal makes it

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  13. Calculate the number of tetrahedral voids in the unit cell of a face-c...

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  14. Fe, Co and Ni are

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  15. Due to Frenkel defect, the density of the ionic solids

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  16. Which of the following is an amorphous solid

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  17. In a face- centred cubic unit cell, the edge length is

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  18. For a hcp lattice, the edge length is equal to

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  19. For a body centred lattice, edge length is equal to

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  20. The fraction of total volume occupied by the atom present in a simple ...

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