JEE Main 2019 Chemistry question
Not in JEE Main or NEET syllabus
A compound of formula AB has the hcp lattice. Which atom forms the hcp lattice and what fraction of tetrahedral voids is occupied by the other atoms:
Answer: (B)
Solution
3 B atoms → 6 tetrahedral voids; 2 A occupy 2/6 = 1/3.