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Why does white ZnO(s) becomes yellow upo...

Why does white ZnO(s) becomes yellow upon heating?

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MODERN PUBLICATION-SOLID STATE-EXERCISE
  1. Explain with the help of diagram the terms: angle of dip at a given pl...

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  2. Give important differences between crystalline and amorphous solids.

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  3. Why does white ZnO(s) becomes yellow upon heating?

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  4. CaCl2 will introduce Schottky defect when added to AgCl crystal. Expla...

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  5. If the radius of the octahedral void is r and the radius of the atoms...

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  6. What do you understand by imperfections in ionic crystals ? Name the t...

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  7. What is the coordination number of atoms. In a cubic close packed st...

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  8. What is the co-ordination nnmber of atoms in a body centered cnbic s...

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  9. What is the radius of ratio (r^+/r^-) for an ion to occupy: tetrahedra...

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  10. What is the radius of ratio (r^+/r^-) for an ion to occupy: octahedral...

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  11. What are the consequences of Schottky defects ?

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  12. Write two main differences between Schottky and Frenkel defect.

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  13. Distinguish between n-type and p-type semiconductors.

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  14. What are the consequences of metal excess defects ?

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  15. What is electrical conductivity in ionic solids due to ?

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  16. Name the types of semicondcutors produced when germanium is doped sepa...

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  17. Explain Schottky defect in sodium chloride crystal?

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  18. Explain the behaviour of semiconductors and insulators on the basis of...

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  19. Calculate tbe packing efficiency of a metal crystal for a simple cubic...

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  20. What is Frenkel defect? Give an example.

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