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Which of the following defects decrease ...

Which of the following defects decrease the density ?

A

Intersitital defect

B

Vacancey defect

C

Frenkel defect

D

Sichorttky defect

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The correct Answer is:
B,D
In Frenkel and Schottky defect which lead to decrease the density both are the type of a stoichiometric defect. In case of Frenkel defect and intersitial defect, there is no change in density of substance.
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NARAYNA-SOLID STATE-LEVEL-IV
  1. Which of the following statements are true about semiconductors?

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  2. An excess of potassium ions makes KCL crystals appear violet or l...

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  3. the number of tetrahedral voids per unit cell in NaCl crystal is ...

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  4. Amorphous solids can also be callled ………….. .

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  5. Which of the following statements are correct?

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  6. Which of the following features are not shown by quartz glass ?

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  7. Which of the following cannot be regarded as molecular solid ?

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  8. In which of the following arrangements, Octahedral voids are forme...

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  9. Frenkel defect is also known as ……… .

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  10. Which of the following defects decrease the density ?

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  11. Match the defects given in Column I with the statements in given Colum...

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  12. Match the type of unit cell given in Column I with the features given ...

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  13. match the types of defect given in column I with the statement...

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  14. Match the items in column I with the items given in Column II. Colum...

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  15. Mathc the type of packing given in Column I with the itmes given in Co...

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  16. Assertion :- (a) the total number of atoms present in a simple c...

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  17. Assertion :- (A) Graphite is good conductor of electricity however ...

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  18. Assertion :- (A) total number of octahedral voids present in ...

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  19. Assertion : The packing efficiency is maximum for the fcc structure. ...

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  20. Assertion :-(A) semiconductors are solids with conductivites in t...

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