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What is the radius of ratio (r^+/r^-) fo...

What is the radius of ratio `(r^+/r^-)` for an ion to occupy:
tetrahedral void.

A

0.155-0.225

B

0.225-0.414

C

0.414-0.732

D

0.732-1

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MODERN PUBLICATION-SOLID STATE-EXERCISE
  1. An element with density 10 g cm^(-3) forms a cubic unit cell with edge...

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  2. If edge of a bcc crystal of an element is a cm, number, then density o...

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  3. What is the radius of ratio (r^+/r^-) for an ion to occupy: tetrahedra...

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  4. A compound formed by two elements A and B crystallizers in the cubic s...

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  5. STATEMENT -1 : In NaCl structure , Na^(+) ion occupy octahedral hole...

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  6. What is the co-ordination number in hcp and ccp ?

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  7. Which of the following is not true

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  8. the Number of atoms per unit cell in fcc and bcc unit cells are 4 and ...

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  9. An element with molar mass 2.7xx10^(-2) kg "mol"^(-1) forms a cubic un...

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  10. If the alignment of mangnetic moments in a substance is 'in-a compensa...

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  11. Calculate the mass of 2.5 mole of naphthalene.

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  12. An alloy of copper silver and gold is found it have copper constitutin...

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  13. Fe(3)O(4) is ferrimagnetic at room temperature but at 850K it becomes:...

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  14. An example of body centred cube is

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  15. The packing fraction for a body centred cube is

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  16. In the body centered cubic unit cell and simple unit cell, the radius...

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  17. In the spinel structur, oxides ions are cubical-closet packed whereas ...

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  18. The most unsysmmetrical and symmeterical systems are, respectively:

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  19. The unit cell with parameter alpha=beta=gamma=90^(@) and a=b ne c is

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  20. The number of atoms present in a hexagonal close-packed unit cell is:

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