# NEET Chemistry The Solid State Questions Solved

Fraction of total volume occupied by atoms in a simple cube is-

(A) $\pi$/2

(B) $\sqrt{3}$$\pi$/8

(C) $\sqrt{2}$$\pi$/6

(D) $\pi$/6

(D) In a simple cubic system, number of atoms Aa =2r

Packing fraction = Volume occupied by one atom / Volume ofunit cell

= (4/3$\pi$r3)/a3 = (4/3$\pi$r3)/2r3  =$\pi$/6

Difficulty Level:

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