MHT CET 2026 Chemistry question
Not in JEE Main or NEET syllabus
In a cubic unit cell of an ionic compound the eight corners are occupied by anions and cations at the center of the cube. Calculate the volume of the unit cell if density of the unit cell is 4 g cm. [Molar mass of compound = 168.6 g mol and ]
Answer: (C)
Solution
Anions at the 8 corners contribute anion; the cation at the body centre contributes 1. So the unit cell contains formula unit. Density , hence \dfrac{Z M}{ρ N_A}\dfrac{1 × 168.6}${4
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