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CBSE Class 12-science Answered

<div>Why cubic unit cell cannot possess end-centred closed packing?? and what is the highest possible symmetry of this type?</div> <div>&nbsp;</div>
Asked by vaish.agrawal | 26 Apr, 2015, 09:17: AM
Expert Answer
In order to have end centered closed packing structure unit cell must possess vectors a≠b≠c, which is absent in case of cubic unit cell due to this cubic unit cell cannot possess end-centred closed packing. The highest symmetry possible for an end centered unit cell is tetragonal.
Answered by Arvind Diwale | 29 Apr, 2015, 10:51: AM
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