Formula of a compound from the fraction of tetrahedral or octahedral voids its atoms occupy
This type of question, asked 10 times: 15 May 2023 S1, 15 May 2023 S2, 14 May 2024 S1, 19 Apr 2025 S2, 13 Apr 2026 S2, 19 Apr 2026 S2, 12 May 2026 S1, 13 May 2026 S1, 14 May 2026 S2, 15 May 2026 S1. All 10 questions below, oldest first.
Try each one first, then open its answer.
Question 1
15 May 2023 S1
97A compound is formed by two elements A and B. The atoms of element B form ccp structure. The atoms of A occupy of tetrahedral voids. What is the formula of the compound?Tap an option to check your answer.
Question 2
15 May 2023 S2
59In a solid, ions occupy corners of a cube forming ccp structure. If ion occupy half the tetrahedral voids, formula of the solid isTap an option to check your answer.
Question 3
14 May 2024 S1
56In an ionic crystalline solid atoms of element Y form hcp structure. The atoms of element X occupy one third of tetrahedral voids. What is the formula of compound?Tap an option to check your answer.
Question 4
19 Apr 2025 S2
82In ionic solid, anions are arranged in ccp array and cations occupy tetrahedral voids. What is the formula of ionic compound? [Consider cation; anion]Tap an option to check your answer.
Question 5
13 Apr 2026 S2
18An ionic compound is formed by elements X and Y. Element Y forms a face-centered cubic (FCC) lattice, and element X occupies one-third of the tetrahedral voids. What is the formula of the compound?Tap an option to check your answer.
Question 6
19 Apr 2026 S2
26In ionic solid, anions are arranged in hcp array and cations occupy tetrahedral voids. What is the formula of ionic compound ? [Consider A = Cation ; B = anion]Tap an option to check your answer.
Question 7
12 May 2026 S1
17A compound is formed by two elements A and B. The elements B forms cubic close packed structure and atoms of A occupy rd of tetrahedral voids. If the formula of the compound is , then find the value of .Tap an option to check your answer.
Question 8
13 May 2026 S1
20A compound is formed by two elements X and Y, atoms of the element Y as anion make ccp and those of the element X as cation occupy all the octahedral voids. What is the formula of the compound ?Tap an option to check your answer.
Question 9
14 May 2026 S2
18The compound is formed of two different elements A and B. Atoms of B forms hcp structure and atoms of A occupy 2/3rd of octahedral voids. Calculate the formula of compound.Tap an option to check your answer.
Question 10
15 May 2026 S1
18In a solid, oxide ions are arranged in ccp. Cation A occupies th of the tetrahedral voids and cation B occupies th of the octahedral voids. What is the formula of the compound?Tap an option to check your answer.