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Why is Frenkel defect not found in pure ...

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

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What is Frenkel Defect?

Why is Frenkel defect not shown by alkali metal halides?

Which has Frenkel defect ?

Why aren't Frenkel defects observed in pure halides of alkali metals?

Why are alkali metals not found in nature?

Why are alkali metals not found in nature?

Why are alkali metals not found in nature ?

Name the non stoichiometric paint defect responsible for colour in 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 ?

Frenkel defect is also known as-

CHHAYA PUBLICATION-MODEL QUESTION PAPER -Answer the following question (set-2)
  1. What is the role of t-butyl peroxide in the polymerisation of ethene?

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  2. What is biodegradable polymer? Give example.

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

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  4. Calculate packing efficiency of bee lattice

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  5. How much space is empty in a hexagonal closed packed solid?

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  6. What makes the crystal of KCl sometimes appear pink and how?

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  7. Write down van't Hoff equation of osmotic pressure.

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  8. The osmotic pressure of an aqueous solution of urea is 500 mm Hg at 42...

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  9. How many grams of chlorine can be produced by the electrolysis of molt...

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  10. Write two differences between potential difference and EMF.

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  11. In a conductive cell, at 298K, the resistance of 0.05M NaOH solution i...

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  12. What is the use of platinum foil in the hydrogen electrode?

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  13. Why is copper extracted by self reduction? Write down the chemical rea...

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  14. What is thermite mixture?

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  15. With the same d-orbital configuration, Cr^(2+) is a reducing agent whi...

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  16. Write down disproportionation reaction of Cu^+ ion

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  17. Why do lanthanides show usually +3 oxidation state?

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  18. Why do transition elements show coloured compounds?

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  19. Why do transition metals have high enthalpy of alomisation?

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  20. Write the structure of chlorophenylmethane.

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