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which of the following defects decras...

which of the following defects decrase the density decrease the density ?

A

Schottky defect

B

Frenkel defect

C

F - centre

D

Impurity defect

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The correct Answer is:
D
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AAKASH INSTITUTE-THE SOLID STATE -Assignment (SECTION - B) (OBJECTIVE TYPE QUESTION)
  1. In a unit cell, atoms A, B, C and D are present at corners, face - cen...

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  2. In a CsCl structure, if edge length is a, then distance between one Cs...

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  3. The correct statement about, CCP structure is

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  4. In a NaCl structure, if positions of Na atoms and Cl - atoms are inter...

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  5. If radius of a metal atom (A) is 5pm and radius of an electronegative ...

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  6. A metal can be crystallized in both BCC and FCC unit cells whose edge ...

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  7. In a unit cell containing X^(2+), Y^(3+) and Z^(2-) where X^(2+) occu...

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  8. On rising temperature and decreasing pressure in CsCl solid

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  9. In a ccp type structure, if half of atoms are removed, then percentag...

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  10. In a BCC unit cell, if half of the atoms per unit cell are removed, th...

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  11. Number of atoms per unit cell, if atoms are present at the corner of u...

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  12. Number of unit cells in 10 g NaCl

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  13. Some of the molecular solid upon heating produces small amount of elec...

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  14. NaCl becomes paramagnetic at high temperature due to

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  15. How many Cs^+ ions occupy the second nearest neighbour location of a C...

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  16. The ratio of number of rectangular plane and diagonal plane in a cubic...

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  17. In the calcum fluaride structure, the coordination bumber of the catio...

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  18. which of the following defects decrase the density decrease the d...

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  19. Glass is a

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  20. The packing efficiency of the 2D square unit cell shown below is

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