# NEET Chemistry The Solid State Questions Solved

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

(A) $\frac{\mathrm{\pi }}{2}$

(B) $\frac{\sqrt{3}\mathrm{\pi }}{8}$

(C) $\frac{\sqrt{2}\mathrm{\pi }}{6}$

(D) $\frac{\mathrm{\pi }}{6}$

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

Packing fraction =

$=\frac{\frac{4}{3}{\mathrm{\pi r}}^{3}}{{a}^{3}}=\frac{\frac{4}{3}{\mathrm{\pi r}}^{3}}{{\left(2r\right)}^{3}}=\frac{\mathrm{\pi }}{6}$

Difficulty Level:

• 5%
• 15%
• 7%
• 76%
Crack NEET with Online Course - Free Trial (Offer Valid Till August 24, 2019)