JEE Main 2021 — Solid State Question with Solution
From: JEE Main 2021 (Online) 18th March Morning Shift
Question
In a binary compound, atoms of element A form a hcp structure and those of element M occupy 2/3 of the tetrahedral voids of the hcp structure. The formula of the binary compound is :
Choose an option
Show full solutionCorrect option: B
Correct answer
BM4A3
Step-by-step explanation
In HCP unit cell,
Z = 6 so A = 6
Also we know, in HCP
Tetrahedral voids = 2Z = 12
No. of M = [TV] = 12 = 8
Formula = M8A6 = M4A3
Z = 6 so A = 6
Also we know, in HCP
Tetrahedral voids = 2Z = 12
No. of M = [TV] = 12 = 8
Formula = M8A6 = M4A3
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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.