Q. The crystalline structure of $NaCl$ is
A) Hexagonal close packing
B) Face centred cubic
C) Square planar
D) Body centred cubic
Explanation
(b)
Sodium chloride ($NaCl)\$has face centred cubic structure. It contains 4$\ \ Na^{+}$ and 4 $Cl^{-}$ in the unit cell. Each ${Na}^{+}$ is surrounded by $6\ Cl^{-}$ ions and $vice - versa$.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.