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The formula of an oxide of iron is Fe(0....

The formula of an oxide of iron is `Fe_(0.93)O_(1.00)`.  If the compound has hundred `O^(-2)` ions, then it contains 

A

`93 Fe^(2+)`ions

B

`93 Fe^(2+)`ions

C

`79 Fe^(2+) ,14 Fe^(3+)`

D

`93 Fe^(2+) ,14 Fe^(3+)`

Text Solution

Verified by Experts

The correct Answer is:
C
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AAKASH SERIES-SOLID STATE-OBJECTIVE EXERCISE -2
  1. The number of atoms in HCP unit cell is

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  2. Edge length of a cube is 300 pm. Its body diagonal would be

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  3. The formula of an oxide of iron is Fe(0.93)O(1.00).  If the compound h...

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  4. If one mole of AgCZ is dopped with 10^(-5) mole of CaCl(2) then number...

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  5. If one mole of AgCl is dopped with 10^(-5) mole of AICI3, the number ...

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  6. NaCZ is doped with 2 xx 10^(-2) mole% of SrCl(2) then the number of ca...

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  7. A solid solution of CdBr(2) in AgBr contains

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  8. Schottky defect in crystals is observed when

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  9. Which among the following is likely to have Schottky defect.

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  10. What type of crystal defect is indicated in the diagram below  |{:(Na...

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  11. In NaCl number of Schottky pairs and number of ions per 1 cc is about ...

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  12. In which of the following the conductivity would be in the order of 10...

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  13. The magnetic behavior is different from others in

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  14. Which of the following is correct statement

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  15. The general formula of ferrites is MFe(2)O(4). Where 'M' would not be

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  16. Which of the following are diamagnetic in vapour state( A) Sodium meta...

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  17. At w hich tem perature, Fe(3)O(4) is a fe rri­magnetic solid converted...

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  19. The alignment of magnetic dipoles shown below uarr darr darr uarr darr...

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  20. Correct statements regarding F-centres are (a) they impart magnetic pr...

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