If the height of HCP unit cell of identical particles is , then the height of octahedral voids from — Solid State Chemistry Question

💡 Solution & Explanation

In an HCP unit cell, octahedral voids are located midway between the close-packed layers A and B. With layers at $z=0$ and $z=h/2$, the void is at $z=h/4$. Symmetrically, the other void is at $3h/4$ from the base. Therefore, correct answer is C.