MCQ
Crystal structure of $\text{NaCl}:$
- ✓Face centered cubic
- BBody centered cubic
- CHexagonal
- DTetrahedral
✓
Answer
Correct option: A.
Face centered cubic
$\text{NaCl}$ has a face$-$centred cubic unit cell. Chloride ions $($being larger in size$)$ form cubic close packing. They are present at the corners and at the centre of each face of the cube. Smaller sodium ions are present in all the octahedral holes.
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