A cell with extra particles on two opposite faces is:
AFace-centred
BBody-centred
CEdge-centred
DEnd-centred
Answer & Solution
Correct answer: D. End-centred
1. Only two of the faces carry an extra particle.
2. Those two faces are opposite each other.
3. So the cell is end-centred.
_Source: NCERT Class 12 Chemistry Part I, Chapter 1, The Solid State._
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