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What type of crystalline solid is boron ...

What type of crystalline solid is boron nitride? Why? Sol : Boron nitride is an example of covalent crystal.

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Boron nitride has network polymeric structure like in diamond, graphite, silica and silicon carbide.
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AAKASH SERIES-SOLIDS STATE-PRACTICE EXERCISE
  1. What type of crystalline solid is boron nitride? Why? Sol : Boron nitr...

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  2. Which of the following is considered as true amorphous solid

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  3. The various types of ionic solids differ in their

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  4. In CsCl structure, each Cst ion is surrounded by

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  5. In crystal structure of sodium chloride, the arrangement of Cl^(-) ion...

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  6. In which of the following, cation occupies cubic void.

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  7. Which of the following possess 2 : 1 type of structure.

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  8. The positions of Cl^(-) ions in NaCl structure are

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  9. The number of NaCl units present in a unit cell of NaCl are

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  10. The atomic radius for a face - centred cubic cell of lattice   paramet...

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  11. The lattice parameter (edgelength) for a body-centred cubic cell of at...

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  12. {:("List - I","List - II"),("A) Ionic solid","1) soft"),("B) Covalent ...

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  13. The lattice parameter for a simple cubic unit cell of atomic radius 'r...

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  14. The packing fraction in a simple cubic cell of crystals is :

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  15. A solid AB has NaCl type structure. If the radius of the cation A is 1...

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  16. Which one of the following statements is incorrect about rock salt typ...

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  17. In sodium chloride, Cl^(-) ions form ccp arrangement. In which sites, ...

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  18. The packing fraction in a face - centred cubic cell of crystals is

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  19. A hydrogen bonded molecular crystal among the following:

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  20. The crystal system of a compound with unit cell dimensions a = 0.387, ...

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  21. {:("List - I","List - II"),("(Crystal System)","(Exmaple)"),("A) Ortho...

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