JEE Main 2022 — Solid State Question with Solution
From: JEE Main 2022 (Online) 29th July Morning Shift
Question
Ionic radii of cation and anion are 102 and respectively. These ions are allowed to crystallize into an ionic solid. This crystal has cubic close packing for . is present in all octahedral voids. The edge length of the unit cell of the crystal AB is __________ pm. (Nearest Integer)
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Show full solutionCorrect answer: 566
Step-by-step explanation
a = 2(rA+ + rB–)
a = 2 (102 + 181)
a = 566 pm
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This is a previous-year question from JEE Main 2022, 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.