JEE Main 2021 — Solid State Question with Solution
JEE Main 2021 (26 Aug Shift 1)
Question
Given below are two statements:
Statement I : Frenkel defects are vacancy as well as interstitial defects.
Statement II : Frenkel defect leads to colour in ionic solids due to presence of F-centres.
Choose the most appropriate answer for the statements from the options given below:
Choose an option
Show full solutionCorrect option: C
Step-by-step explanation
A Frenkel defect is another form of a point defect which is created when an atom or cation leaves its original place in the lattice structure to create a vacancy while occupying another interstitial position within the solid crystal. Frenkel defect is dislocation defect, it is not interstitial defect, and it is not responsible for colour of solid.
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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.