JEE Main 2017ChemistrySolid StateMediumMCQ

JEE Main 2017Solid State Question with Solution

JEE Main 2017 (02 Apr)

Question

A metal crystallizes in a face centred cubic structure. If the edge length of its unit cell is 'a', the closest approach between two atoms in the metallic crystal will be

Choose an option

Show full solutionCorrect option: C
Correct answer
Ca2

Step-by-step explanation

FCC unit cell: eight corners with six faces

 r + 2r +r =2a4r =2aClosest distance in fcc2r =2a2      = 2a2×2=a2

 

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About this question

This is a previous-year question from JEE Main 2017, 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.