The pyknometric density of sodium chloride crystal is \[2.165\times {{10}^{3}}kg\,{{m}^{-3}}\] while its X-rays density is \[2.178\times {{10}^{3}}kg\,{{m}^{-3}}\]. The fraction of unoccupied sites in sodium chloride crystal is [CBSE PMT 2003]

The pyknometric density of sodium chloride crystal is \[2.165\times {{

1.	The pyknometric density of sodium chloride crystal is \[2.165\times {{10}^{3}}kg\,{{m}^{-3}}\] while its X-rays density is \[2.178\times {{10}^{3}}kg\,{{m}^{-3}}\]. The fraction of unoccupied sites in sodium chloride crystal is [CBSE PMT 2003]
A.	\[5.96\times {{10}^{-3}}\]
B.	\[5.96\]
C.	\[5.96\times {{10}^{-2}}\]
D.	\[5.96\times {{10}^{-1}}\]
Answer» B. \[5.96\]