The simplest formula of a solid having CCP arrangement for 'A' atoms in which alternate face-centres — Solid State Chemistry Question

💡 Solution & Explanation

In a CCP unit cell: A = 4 (at lattice points). B occupies alternate face centers (2 face centers) => B = 2 × 1/2 = 1. C occupies alternate edge centers (4 edge centers) => C = 4 × 1/4 = 1. Thus, the ratio of A : B : C is 4 : 1 : 1, giving the formula A4BC.