JEE Main 2021 — Solid State Question with Solution
From: JEE Main 2021 (Online) 31st August Evening Shift
Question
The empirical formula for a compound with a cubic close packed arrangement of anions and with cations occupying all the octahedral sites in AxB. The value of x is _____________. (Integer answer)
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Show full solutionCorrect answer: 1
Correct answer
1
Step-by-step explanation
Anions forms CCP or FCC(A) = 4A per unit cell Cations occupy all octahedral voids (B+) = 4B+ per unit cell
cell formula A4B4
Empirical formula AB (x = 1)
cell formula A4B4
Empirical formula AB (x = 1)
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This is a previous-year question from JEE Main 2021, covering the Solid State chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.