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Why does sodium chloride on heating with...

Why does sodium chloride on heating with sodium vapours acquire yellow colour ?

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DINESH PUBLICATION-SOLID STATE-ASSIGNMENT
  1. What type of stoichiometric defect is shown by NaCl ? Explain.

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  2. Define the terms (i) Crystalline solids (ii) Frenkel defects (iii) n-t...

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  3. Why does sodium chloride on heating with sodium vapours acquire yellow...

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  4. What is the effect of temperature and pressure on ionic compounds havi...

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  5. How will you convert CsCl structure into NaCl structure ?

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  6. Write the three types of solids on the basis of their ability to condu...

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  7. Although pure silicon is an insulator, then how does it behave as semi...

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  8. Ferromagnetic Substances

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  9. Assertion : On heating ferromagnetic or ferromagnetic substance , the...

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  10. With the help of electron spins, clearly distinguish between Ferromagn...

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  11. What do you understand by paramagnetism and diamagnetism ?

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  12. why does the electrical conductivity of semiconductors increse w...

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  13. How are n-type and p-type semiconductors formed ? Give one example in ...

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  14. What types of semi-conductors will be formed when silicon is doped wit...

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  15. What are piezoelectric crystals ? Give their important uses.

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  16. How will you account for the fact that silicon is an insulator but sil...

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  17. Give one example of 1315 compounds.

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  18. Define the term doping. Pure silicon is an insulator. Silicon doped wi...

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  19. What is the magnetic nature of super-conductors?

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  20. How does the electrical conductivity of super- conductors vary with te...

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