See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

In CCP number of ‘A’ atoms per unit cell = 4 No. of octahedral voids = 4 No. of tetrahedral voids = 8 Number of ‘B’ atoms present in O.V’s = 4 2 = 2 Number of ‘C’ atoms present in T.V’s = 8 2 = 4 No. of vacant voids per unit cell = 2 4 6  