NEET Chemistry The Solid State Questions Solved


At room temperature, sodium crystallises in a body centred cubic cell with a 4.24 A0. The theoretical density of sodium is- (Atomic mass of sodium=23.0 g mol-1)

(A) 2.05 g cm-3                                         

(B) 3.45 g cm-3

(C) 1.00 g cm-3                                         

(D) 3.55 g cm-3

(C). The value of Z for a bcc unit cell is 2.

Volume V=4.24A3

ρ=ZMNV=2×236.023×1023×4.24×10-83=1.00g/cm3

Difficulty Level:

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