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In ZnS , S ^(2-) ions form ……. Struc...

In ZnS ` , S ^(2-)` ions form ……. Structure while ` Zn^(2+)` ions are present in ……. Voids.

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fcc, alternate tetrahedral voids
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PRADEEP-STATES OF MATTER: SOLID MATTER-TEST YOUR GRIP (FILL IN BLANKS)
  1. In fluorite (CaF(2)), Ca^(2+) ions form the ……. Struture whereas F^(...

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  2. In NaCl, Cl^(-) ions are present in the ……. Structure whereae Cl^(-) ...

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  3. In ZnS , S ^(2-) ions form ……. Structure while Zn^(2+) ions are ...

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  4. ZnS exists in two forms called …….. And ……..

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  5. Zinc blede has ……. Arrangement of S^(2-) ions whereas wurtzite has ……...

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  6. Wurtzite has …… formula units per unit celll wherease zinc blende has ...

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  7. Due to Frenkel defect, the density of the crystal, …….. Wherease due t...

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  8. NaCl crystals have some yellow colour. This is due to the presence of ...

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  9. The process of adding impurities to a crystalline substance so as to c...

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  10. If arsenic is added as impurity to silicon, the type of semiconductor ...

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  11. If aluminium is added as imourity to silicon, the type of semiconducto...

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  12. Frenkel defect is shown by crystals having coordination number and di...

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  13. Semiconductors posses conducitivity in the range ……. To…….

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  14. The band formed atomic orbitals of lower energy is called….. While tha...

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  15. If there is a large energy gap between the filled valance band and emp...

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  16. The electrical conductivity of semiconductors ……. With increase of te...

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  17. Pure substances which show conducitivity similar to that of silicon an...

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  18. As regards magnetic behaviour , TiO(2) is ……..

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  19. Substances which show permanent magnetism even in the absence of magne...

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  20. Antiferromagnetic subtance have….. Magnetic moment.

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