Which of the following statement(s) is/are correct with respect to zinc blende structure? — Solid State Chemistry Question

💡 Solution & Explanation

In ZnS, S$^{2-}$ forms the CCP lattice (occupying corners and face centres), while Zn$^{2+}$ occupies alternate tetrahedral holes. Both ions have a tetrahedral coordination environment (coordination number of 4). The unit cell contains an effective number of 4 Zn$^{2+}$ and 4 S$^{2-}$ ions, yielding 4 ZnS formula units. Therefore, correct answer is B,C,D.