MHT CET 2025 Chemistry question
Not in JEE Main or NEET syllabus
Calculate the volume occupied by a particle in bcc unit cell if the volume of unit cell is cm
Answer: (A)
Solution
In a bcc unit cell, the corner atoms contribute and the body-centre atom contributes 1, so there are 2 atoms per cell. Atoms touch along the body diagonal, so and the packing fraction is (68%).
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