Q 2840134013.     `CsBr` crystallises in a body centred cubic lattice.
The unit cell length is `"436.6 pm"`. Given that the
atomic mass or `Cs= 133` and that of `Br =80` amu
and Avogadro number being `6.02 xx 10^23 mol^(-1)`
the density of `CsBr` is

AIPMT 2006
A

`4.25 g//cm^3`

B

`42.5 g//cm^3`

C

`0.425 g//cm^3`

D

`8.25 g//cm^3`

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