Question

Match the column I with column II and mark the appropriate choice.

	Column I (Structure)		Column II (Packing efficiency)
(A)	Simple cubic structure	(i)	68%
(B)	Face centered cubic structure	(ii)	74%
(C)	Body centered cubic structure	(iii)	52%

• A. (A) $\to$ (iii), (B) $\to$ (ii), (C) $\to$ (i)
• B. (A) $\to$(i), (B) $\to$ (ii), (C) $\to$ (iii)
• C. (A) $\to$ (ii), (B) $\to$ (i), (C) $\to$ (iii)
• D. (A) $\to$ (iii), (B) $\to$ (i), (C) $\to$ (ii)

Answer 1

Answer: (A)

(A) $\to$ (iii), (B) $\to$ (ii), (C) $\to$ (i)

For simple cubic structure, packing efficiency is 52% (iii)

For $fcc$, packing efficiency = 74%(ii)

For $bcc$, packing efficiency = 68%.(i)

So, correct answer is option A.