Q36 / 150 · MHT CET 2026 (18 April Shift 2) · Chemistry
What is the total number of adjacent unit cells shared by each face particle of fcc unit cell ?
- A$1$
- Correct answerB$2$
- C$4$
- D$8$
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: $2$
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: $2$
Hence, the correct answer is option: 'B'.