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In which of the following arrangements octahedral voids are formed?
(i) hcp
(ii) bcc
(iii) simple cubic
(iv) fcc
Answers (1)
The answer is the option (i, iv) In hcp and fcc arrangement, octahedral voids are formed. In an fcc unit cell, the octahedral voids are observed at edge centre and body centre whereas in bcc and simple cubic, no octahedral voids are observed. Cubic voids are formed in bcc arrangement.
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