1.

\[CsBr\] crystallises in a body centered cubic lattice.  The unit cell length is 436.6 pm. Given that the atomic mass of Cs=133 and that of Br=80 amu and Avogadro number being \[6.02\times {{10}^{23}}mo{{l}^{-1}}\]  the density of \[CsBr\] is

A. \[0.425\text{ }g/c{{m}^{3}}\]
B. \[8.5g/c{{m}^{3}}\]
C. \[4.25\text{ }g/c{{m}^{3}}\]
D. \[82.5\text{ }g/c{{m}^{3}}\]
Answer» C. \[4.25\text{ }g/c{{m}^{3}}\]


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