Question
A compound forms hcp structure. What is the number of tetrahedral voids formed in 0.8 mol of it.
MHT CET
Chemistry
Solid State
2026
MHT CET 2026 (16 April Shift 1)
MHT CET Chemistry Question (2026) — Solution
Options
- A. 4.818 10^ 23
- B. 9.635 10^ 23
- C. 7.227 10^ 23
- D. 2.410 10^ 23
Answer
B. 9.635 10^ 23
Step-by-step solution
Number of atoms in 0.8 mol of the compound is given by 0.8 N_A. Number of atoms = 0.8 6.022 10^ 23 = 4.8176 10^ 23 In a close-packed structure, the number of tetrahedral voids is twice the number of atoms. Number of tetrahedral voids = 2 4.8176 10^ 23 = 9.6352 10^ 23 Answer: 9.635 10^ 23
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