Lithium borohydride ($LiB{H}_{4}$), crystallises in an orthorhombic system with 4 molecules per unit cell. The unit cell dimensions are : a = 6.81 Å, b = 4.43 Å, c = 717 Å. If the molar mass of $LiB{H}_{4}$ is 21.76 g $mo{l}^{-1}$. The density of the crystal is-

(A)

(B)

(C)

(D) None of these

Concept Videos :-

#9 | FCC Unit Cell: Packing Fraction
#20 | Rank of HP Unit Cell
#21 | Packing Fraction of HP Unit Cell
#24 | Density of Unit Cell

Concept Questions :-

Density/Formula/packing fraction/ Semiconductors