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Packing Fraction and Efficiency

Match the fol...

Question

Match the following cubic structure with its packing fraction

A

68%

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B

74%

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C

52.4%

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D

74%

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Solution

Cubic lattice Radius(r) Packing fraction(%)

CCP $\frac{a}{a \sqrt{2}}$ 68%

Simple cubic a 52.4%

Bcc $\frac{\sqrt{3}}{4} a$ 68%

Hcp $\frac{a}{a \sqrt{2}}$ 74%

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Similar questions

Q. 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%

Q. In which of the following close packing, (with of hexagonal two-dimensional layers) the packing efficiency is 74%?

निम्नलिखित में से किस निबिड संकुलन (षट्कोणीय द्वि-विमीय परतों वाले) में संकुलन क्षमता 74% है?

Q. Packing density in identical solid spheres is

74 %

Q. Packing fraction of an identical solid sphere is

74 %

Q. Metal M crystallizes in a simple cubic crystal and has a packing efficiency of 52.2%. When it combines with a halogen

X_{2}

and forms MX, it forms a NaCl type crystal with a cation to anion ratio of 1:2. What is the packing efficiency of the MX crystal?

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