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Question: Answered & Verified by Expert
The packing efficiency of the face centered cubic (fcc), body centered cubic (bcc) and simple / primitive cubic (pc) lattices follows the order
ChemistrySolid StateKVPYKVPY 2016 (SB/SX)
Options:
  • A $\mathrm{fcc}>\mathrm{bcc}>\mathrm{pc}$
  • B $b c c>f c c>p c$
  • C $\mathrm{pc}>\mathrm{bcc}>\mathrm{fcc}$
  • D $b c c>p c>f c c$
Solution:
1692 Upvotes Verified Answer
The correct answer is: $\mathrm{fcc}>\mathrm{bcc}>\mathrm{pc}$
\begin{array}{|l|l|l|l|}
\hline & FCC & BCC & SC \\
\hline\eta & 74 \% & 68 \% & 52.4 \% \\
\hline
\end{array}
order $\mathrm{FCC}>\mathrm{BCC}>\mathrm{SC}$

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