JEE Main & Advanced
Chemistry
The Solid State / ठोस प्रावस्था
Question Bank
Critical Thinking The Solid State
question_answer
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]