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why does white Zn0(s) becomes yellow ...

why does white Zn0(s) becomes yellow upon heating ?

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Which of the following metal oxides is white in colour but becomes yellow on heating

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DINESH PUBLICATION-SOLID STATE-N.C.E.R.T
  1. Why common salt (NaCl) sometimes appear yellow?

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  2. why is Fe0(s) not formed in stoichiometric compostion ?

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  3. why does white Zn0(s) becomes yellow upon heating ?

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

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  5. Expalin why does conductivity of germainum crystals increase on ...

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  6. In a compound, nitrogen atoms (N) make cubic close packed lattice and ...

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  7. Under which situations can an amorphous substance change to cryst...

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  8. Explain the structure of neuron with the help of a labelled diagram.

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  9. Show that in a cubic close packed structure, eight tetrahedral voids a...

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  10. How does the doping increase the conductivity of semiconductor ?

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  11. A sample of ferrous oxide has actual formula Fe(0.93)O(1..00). In this...

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  12. Frenkel defect is not found in the halides of alkali metals. Assign re...

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  13. What is difference in bahavior between glass and sodium chloride would...

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  14. A metallic crystal cystallizes into a lattice containing a sequence of...

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  15. Schottky defect lowers the density of ionic crystals while Frenkel def...

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  16. why does white Zn0(s) becomes yellow upon heating ?

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  17. Crystals possessing CsCl structure change to NaCl structure upon heati...

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  18. AgI crystallises in a cubic close-packed ZnS structure. What fraction ...

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  19. The ions of NaF and MgO have the same number of electrons and inter nu...

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  20. The melting point of sodium chloride is more than that of sodium. Just...

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