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Zinc blede has ……. Arrangement of S^(2-)...

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

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The correct Answer is:
ccp/fcc,hcp
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Assertion (A) : Zinc blende and wurtzite both have fcc arrangement of S^(2-) ions. Reason (R ) : A unit cell of both has four formula units of ZnS .

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PRADEEP-STATES OF MATTER: SOLID MATTER-TEST YOUR GRIP (FILL IN BLANKS)
  1. In ZnS , S ^(2-) ions form ……. Structure while Zn^(2+) ions are ...

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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  18. Antiferromagnetic subtance have….. Magnetic moment.

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  19. Magnetite is …….as regards magnetic behaviour .

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  20. the electricity produced in a polar crystals when mechanical stress is...

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