A) primitive
B) face centred
C) body centred
D) end centred
Correct Answer: B
Solution :
Density, \[d=\frac{MZ}{{{N}_{0}}{{a}^{3}}}\] where, Z = number of atoms in unit cell \[\therefore \] \[Z=\frac{d{{N}_{0}}{{a}^{3}}}{M}\] \[=\frac{8.92\times 6.023\times {{10}^{23}}\times {{(362\times {{10}^{-10}})}^{3}}}{63.55}\] \[=4.0\] Thus, metal has face centred unit cell.
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