The structure obtained when all the tetrahedral holes are occupied in a fee structure is of the type · ABC26PH0184
Subject: Physical Chemistry · Chapter: Solid State Chemistry · Topic: Solid State Chemistry – General · Exam: CSIR NET 2012 · Marks: 2 · Difficulty: Medium
The structure obtained when all the tetrahedral holes are occupied in a fee structure is of the type
(a)NaCl
(b)CsCl
(c)$\mathrm{CaF}_{2}$
(d)ZnS
Answer
Answer: C ✓ checked by 4AB · confidence high
Explanation
An fcc array of N spheres has 2N tetrahedral holes; filling all of them gives AB₂ stoichiometry with 8:4 coordination — the fluorite (CaF₂) structure. ZnS fills only half of them.