JEE Main 2021 — Solid State Question with Solution
From: JEE Main 2021 (Online) 20th July Evening Shift
Question
Diamond has a three dimensional structure of C atoms formed by covalent bonds. The structure of diamond has face centred cubic lattice where 50% of the tetrahedral voids are also occupied by carbon atoms. The number of carbon atoms present per unit cell of diamond is ____________.
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Show full solutionCorrect answer: 8
Correct answer
8
Step-by-step explanation
Carbon atoms occupy FCC lattice points as well as half of the tetrahedral voids.
Therefore number of carbon atoms per unit cell = 8
Therefore number of carbon atoms per unit cell = 8
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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.