A unit cell with particles beyond the corners is called:
APrimitive
BIsotropic
CAmorphous
DCentred
Answer & Solution
Correct answer: D. Centred
1. Some cells carry extra particles at other positions.
2. That is in addition to the ones at the corners.
3. Such a cell is a centred unit cell.
_Source: NCERT Class 12 Chemistry Part I, Chapter 1, The Solid State._
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