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Percentage of free space in cubic close-...

Percentage of free space in cubic close-packed structure and in body-centred packed structure are, respectively, (1) 48% and 26% (2) 30% and 26% (3) 26% and 32% (4) 32% and 48%

A

48% and 26%

B

30% and 26%

C

26% and 32%

D

32% and 48%

Text Solution

Verified by Experts

The correct Answer is:
C
This is because packing efficiency of cubic close packing and body-centred packing are 74% and 68%. So, the free space will be 100 - 74 = 26% and 100 - 68 = 32%.
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