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What type of substances would make bette...

What type of substances would make better permanent magnets, ferromagnetic or ferrimagnetic. Justify your answer.

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MODERN PUBLICATION-SOLID STATE-EXERCISE
  1. How many atoms are there in a unit cell of a metal crystallizing in fc...

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  2. What type of stoichiometruc defect is shown in AgCl?

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  3. What type of substances would make better permanent magnets, ferromagn...

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  4. A compound is formed by two elements M and N. The elements N forms ccp...

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  5. What are the coordination number of Na^+ and Cl^- ions in NaCl?

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  6. Name the substance which on treatment with chlorine yields bleaching p...

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  7. Which point defect lowers the density of crystal ?

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  8. Choose the correct options: When silicon is doped with arsenic, n-type...

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  9. What type of interactions hold the molecules together in a polar molec...

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  10. Which stoichiometric defect in crystals increases the density of a sol...

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  11. What is n-type semiconductor ?

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  12. What is an intrinsic Semi-conductor ?

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  13. What is the formula of a Compound in which the element Y forms hcp lat...

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  14. Close packing is maximum in the crystal which is

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  15. In a solid lattice the cation has left a lattice site and is located a...

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  16. The cordination number of a metal crystallising in a hexagonal close-p...

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  17. In the primitive cubic unit cell, the atoms are present at the:

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  18. In the body centered unit cell, the lattice point are present at the:

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  19. The crystal system of a compound with unit cell parameter,

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  20. The apperance of colour in solid alkeli metal halide is generally due ...

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