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The number of atoms in 2.4 g of body cen...

The number of atoms in 2.4 g of body centred cubic crystal with length 200 pm is (density=10 g `cm^(-3)` ,NA =`6xx10^(22)` atoms/mol)

A

`6xx10^(20)`

B

`6xx10^(22)`

C

`6xx10^(19)`

D

`6xx10^(23)`

Text Solution

Verified by Experts

The correct Answer is:
B
`6.022xx108`
1 mole of NaCl is doped with `10^(-5)` mole of `SrCl_(2)` leads `6.022xx10^(23)xx10^(-5)=6.22xx10^(18)` cation vacancies.
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