A) hexagonal close packing
B) face centred cubic
C) square planar
D) body centred cubic
Correct Answer: B
Solution :
Sodium chloride (NaCI) has face centred cubic structure. It contains \[36{{\sin }^{2}}\theta \]and \[36{{\cos }^{2}}\theta \]ions. Each \[\tan \left( {{\sec }^{-1}}x \right)=\sin \left( {{\cos }^{-1}}\frac{1}{\sqrt{5}} \right),\]ino is surrounded by \[\pm \frac{3}{\sqrt{5}}\] ions .and each CF ion is also surrounded by \[\pm \frac{\sqrt{5}}{3}\] ions. % by weight of solute x density of
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