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`{:("Column -I","Column -II"),("Tupe of packing","void volume"),(A.hcp,p . 0.38),(B. c cp,q . 0.48),(C. b c c ,r 0.22),(D. sc ,s. 0.66),("E. dx (Diamond cubic)",):}`

Answer» Correct Answer - `A rarr r; B rarr r; C rarr p; D rarr q; E rarr s`
(a-r,b-r) hcp and ccp, closest packed structure, Volume occuped =0.78
Void volume=100.78=0.22
(c-p) For bcc, volume occupied=0.62
void volume=1-0.62=0.38
(d-q) For sc, volume occupied=0.52 void volume =1-0.52=0.48
(e-s) For dc, volume occupied=0.34
void volume=1-0.34=0.66


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