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The figure below shows a unit cell of th...

The figure below shows a unit cell of the mineral Perovskite ( the titanium atom is at the centre of the cube ). Which of the following is a correct chemical formula for this mineral ?

A

`Ca_(8)TiO_(6)`

B

`CaTiO`

C

`Ca_(2)TiO_(3)`

D

`CaTiO_(3)`

Text Solution

Verified by Experts

The correct Answer is:
4
`Z_(Ca)=,8xx(1)/(8)=1,Z_(r)=1xx1=1.Z_(o)=6xx(1)/(2)=3`
`:'O^(2-)` ions are at 6 face centres and `Ca^(2+)` at 8 comers.
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