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MHT CET202618 April 2026Evening ShiftChemistrySolid StateActual

What is the total number of adjacent unit cells shared by each face particle of fcc unit cell ?

Options

  1. A1
  2. B2
  3. C4
  4. D8

Correct answer

B. 2

Step-by-step solution

In a face-centered cubic (fcc) unit cell, particles are located at the corners and at the center of each face. A particle present at the center of a face lies exactly on the boundary between two adjacent unit cells. Therefore, each face-centered particle is shared equally by exactly 2 unit cells. Answer: 2

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