JEE Main 2023 — Solid State Question with Solution
JEE Main 2023 (01 Feb Shift 2)
Question
A metal M crystallizes into two lattices :- face centred cubic (fcc) and body centred cubic (bcc) with unit cell edge length of and respectively. The ratio of densities of lattices fcc to bec for the metal M is _______(Nearest integer)
Enter your answer
Show full solutionCorrect answer: 4
Correct answer
4
Step-by-step explanation
The density of the crystal lattice can be calculated as follows,
effective number of atoms in unit cell(For BCC=2 and FCC=4)
Molar mass
=Avogadro's number
Edge length
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Solid State chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2023, 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.