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Classify the following as amorphous or c...

Classify the following as amorphous or crystalline solids: polyurethane, naphtalene, benzoic acid, teflon, potassium nitrate, cellophane, polyvinyl chloride, fibre glass, copper.

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Polyurethane, Teflon,cellophane,polyvinyl chloride,fiber glass,-amorphous naphthalene, benzoic acid, potassium nitrate copper-crystalline solids
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NARAYNA-SOLID STATES-EXERCISE-4
  1. Classify the following as amorphous or crystalline solids: polyurethan...

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  2. The volume of the HCP unit cell is

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  3. A metal oxide crystallise in a hexagonal close packed array of oxide i...

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  4. Ice crystallises in hexagonal lattice having volume of unit cell is 13...

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  5. The metal calcium crystallises in fcc unit cell with a = 600 pm. Calcu...

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  6. Ionic radii of Mg^(2+) and O^(2-) ions are 66pm and 140pm respectively...

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  7. An element cyrstallizes in a structure having F.C.C. unit cell of an e...

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  8. Iron has body centred cubic lattice. If the edge length of the unit ce...

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  9. LiCl has rock salt structure, with an edge length of 6.0Å. If anions ...

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  10. Aluminium crystallizes in a cubic close packed structure. Its metallic...

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  11. In face - centred cubic (fcc) crystal lattice, edge length is 400 pm....

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  12. Ammonium chloride crystallizes in a body-centred cubic lattice with a ...

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  13. First order X-ray reflection (lambda=154pm) is maximum from a set of (...

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  14. The volume of atom present in a face-centred cubic unit cell of a meta...

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  15. Copper crystallises in fcc with a unit cell length of 361 pm. What is ...

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  16. The edge length of a face centred cubic cell of an ionic substance is ...

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  17. Lithium forms body centred cubic structure. The length of the side of ...

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  18. CsClcrystallizes in body centred cubic lattice. If 'a' is its edge len...

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  19. There is a collection of crystalline substances in a hexagonal closed ...

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