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True or false For bcc metallic unit cell...

True or false
For bcc metallic unit cell, the edge length (a) and radius of atom are related as: `a=4/sqrt3 r`.

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MODERN PUBLICATION-SOLID STATE-EXERCISE
  1. True or false The percentage of vacant space in bcc unit cell and simp...

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  2. Number of atoms per unit cell in fcc and bcc unit cells are 4 and 2 re...

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  3. True or false For bcc metallic unit cell, the edge length (a) and radi...

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  4. State weather it is True or False The formula for finding the surface...

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  5. True or false The two ions A^+ and B^- have radii 90 and 200 pm respec...

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

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  7. Which point defect lowers the density of crystal ?

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  8. True and False: Seal is a mammal live wholly in water.

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  9. Write the structure of benzal chloride

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  10. Mark true or false FCC has four atoms per unit cell

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  11. STATEMENT -1 : Antiferromagnetic subatance becomes paramagentic on he...

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  12. Fill ups The number of atoms for primitive unit cell is…………….for body ...

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  13. Electrical conductance of metals decreases with increase in temperatur...

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  14. Fill ups The substance which are strongly attracted by the magnetic fi...

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

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  16. A Group 14 element is to be converted into n-type semiconductor by dop...

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  17. What is electrical conductivity in ionic solids due to ?

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  18. Fill ups The coordination number of each sphere in hcp is…………..in ccp ...

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  19. Fill ups The packing fraction of a simple unit cell is……………….. .

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  20. Fill ups The empty space in hcp is……………and that in the bcc packing is…...

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