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Ferrous oxide has a cubie structure an...

Ferrous oxide has a cubie structure and edge length of the uint cell is ` 5.0Å` . Assuming the density o ferrous oxide to be `3.84 g//cm^(3)` , the no. Of `Fe^(2+)` and `O^(2-)` ions present in each unit cell be : (use `N_(A)= 6xx 10^(23)`):

A

`4 Fe^(2+) and 4 O^(2-)`

B

`2 Fe^(2+) and 2 O^(2-)`

C

`1 Fe^(2+) and 1 O^(2-)`

D

`3 Fe^(2+) and 4 O^(2-)`

Text Solution

Verified by Experts

The correct Answer is:
A
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