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How do metallic and ionic substances dif...

How do metallic and ionic substances differ in conducting electricity ?

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Give reasons for the following: Ionic compounds do not conduct electricity in solid state.

DINESH PUBLICATION-SOLID STATE-ASSIGNMENT
  1. A substance has its melting point above room temperature under one atm...

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

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

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

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

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

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  7. Define a unit cell

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  8. What is co-ordination number ?

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

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  10. Define term space lattice ?

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

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

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  13. What are voids or interstitial sites ?

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

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

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

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

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

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  19. The unit cell of a substance has cations A^(+) at the corners of the u...

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  20. What is the co-ordination number of each sphere in (i) Hexagonal clo...

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