MCQ
Which one of the following is not a close packing?
- A$\text{HCP}$
- B$\text{CCP}$
- ✓$\text{BCC}$
- D$\text{FCC}$
✓
Answer
Correct option: C.
$\text{BCC}$
The space occupied in $\text{hcp, ccp, bcc}$ and $\text{fcc}$ structures are $74\%, 74\%, 68\%$ and $74\%$ respectively. Thus$, \text{bcc}$ is not a close packing.
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