An ionic compound consists of only A+, B2+ and C3- ions. Which of the following option(s) is/are cor — Solid State Chemistry Question

💡 Solution & Explanation

To maintain charge neutrality, the stoichiometry must yield a balanced charge sum of zero. Let's analyze (a): C3- is CCP (4 per cell, charge -12). A+ in octahedral (4 per cell, charge +4). B2+ in half of tetrahedral (4 per cell, charge +8). Net charge = -12 + 4 + 8 = 0, which is stable. Let's analyze (b): B2+ is HCP (6 per cell, charge +12). A+ in octahedral (6 per cell, charge +6). C3- in half of tetrahedral (6 per cell, charge -18). Net charge = +12 + 6 - 18 = 0, which is also stable.