JEE Main 2010 — Solid State Question with Solution
From: AIEEE 2010
Question
Percentages of free space in cubic close packed structure and in body centred packed structure are
respectively :
Choose an option
Show full solutionCorrect option: B
Correct answer
B26% and 32%
Step-by-step explanation
Packing fraction is defined as the ratio of the volume of the unit cell that is occupied by the spheres to the volume of the unit cell.
P.F. for cpp and bcc are and respectively.
So, the free space in ccp and bcc are & respectively.
P.F. for cpp and bcc are and respectively.
So, the free space in ccp and bcc are & respectively.
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This is a previous-year question from JEE Main 2010, 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.