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What is Frenkel Defect?...

What is Frenkel Defect?

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What is Frenkely defect?

Why is Frenkel defect not shown by alkali metal halides?

Why is Frenkel defect not found in pure alkali metal halides ?

Give reason : (a) Why is Frenkel defect found in AgCl ? (b) What is the difference between silicon doped with phosphorus and doped with gallium semi-conductors ?

Which has Frenkel defect ?

STATEMENT -1 : Due to Frenkel defect there is no effect on density of a solid. STATEMENT -2 : Ions shift from lattice site in Frenkel defect .

Which defect causes decrease in density of an ionic crystal, Schottky defect or Frenkel defect?

Explain the following terms with suitable examples: (i) Schottky defect (ii) Frenkel defect (iii) Interstitials and (iv) F-centre.

Which of the following point defect are shown by AgBr crystals: (i) Schottky defect (ii) Frenkel defect (iii) Metal excess defect (iv) Metal deficiency defect-

Assertion: Increase in dielectric constant is observed for crystals having Frenkel defect Reason: Similarly charged cations come closer in the crystal lattice

UNITED BOOK HOUSE-MP_1-EXERCISE
  1. Explain why [Co(NH3)6]^(3+) ion is diamagnetic. [Z for Co=27]. By usin...

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  2. What is co-polymer? Give example.

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  3. What is Frenkel Defect?

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  4. Two ions A^+ and B^- have raddi 88 and 200 pm respectively. In the clo...

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  5. What is sehottky defect?

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  6. Gold (at mass 19^- at radius=0.114 nm) crystallizes in a FCC unit cell...

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  7. Calculate DeltaG^@ in kJmol^(2+) and equilibrium constant for the foll...

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  8. Differentiate between the following: Calcination and roasting

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  9. Differentiate between the following: Gangue and flux

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  10. Differentiate between the following: Galvanization and tin plating.

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  11. Write chemical equations for the following reactions: Oxidation of Fe^...

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  12. Write chemical equations for the following reactions: Metallic copper ...

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  13. Write chemical equations for the following reactions: Iodine reacts w...

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  14. Explain with reason the following: Cu^+ ion does not form coloured sal...

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  15. Explain with reason the following: The (+3) oxidation states of La(Z=5...

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  16. An alkylhalide (A), on reaction with Mg in dry ether followed by treat...

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  17. Chlorobenzene on mononitration with mixed acid gives mainly a mixture ...

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  18. Identify A, B, C:

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  19. An organic compound 'A' (C2H6O) reacts with sodium to form a compound ...

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  20. Equimdal solutions of NaCI and BaCI2 are prepared in water. The Freezi...

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