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A substance has its melting point above ...

A substance has its melting point above room temperature under one atmosphere pressure. Predict its nature.

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It is a solid.
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DINESH PUBLICATION-SOLID STATE-ASSIGNMENT
  1. What is anisotropy ? Which types of solids exhibit this property ?

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  2. Give the nature of bonding in the following types of solids. (i)Copp...

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  3. A substance has its melting point above room temperature under one atm...

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  4. Write two points of distinction between crystalline and amorphous soli...

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  5. How do metallic and ionic substances differ in conducting electricity ...

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  6. Write a point of distinction between a metallic solid and ionic solid ...

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  7. Ionic solids conduct electricity in the molten state and not in the so...

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  8. (a) Define the terms crystalline and amorphous solids. (b) Explain S...

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  9. Define a unit cell

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  10. What is co-ordination number ?

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  11. How manu atoms are present in the unit cell of : (i) Simple cubic ...

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  12. Define term space lattice ?

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  13. Identical spheres are undergoing two-dimensinal packing in squre close...

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  14. What is the co-ordination number of each sphere in cubic close packing...

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  15. What are voids or interstitial sites ?

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  16. How many voids per point are present in cubic close packed structures ...

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  17. How many octahedral tetrahedral voids are per sphere in a unit cell ?

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  18. Name the three of crystalline solids having the formula AB.

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  19. What are the coordination number of Zn^(2+) and S^(2-) ions in ZnS?

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  20. An element occurs in bcc structure. How many atoms are present in its ...

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