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In which of the following crystal structure the void efficiency is 32%?

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simple cube

face centered cube

hexagonal close packing

body centered cube

answer is D.

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Detailed Solution

A simple cube has a 52% packing efficiency and a 48% void efficiency.
fcc or hcp has 74% packing efficiency and 26% Void efficiency
body-centered cube has a packing efficiency of 68% and a 32% Void efficiency

Therefore, the correct option is D body centered cube

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