NEET UG 2022 · Chemistry · Question 65
NEET 2022 Chemistry, question 65
Question 65 of the NEET 2022 paper (code R1) is a Chemistry question from The Solid State. Its idea, Schottky and Frenkel Defects, was asked twice, in 2017 and 2022, across NEET 2017–2026. The NTA final answer key gives option 3.
Updated 2026-10-08
Q65 · Chemistry
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) :
In a particular point defect, an ionic solid is electrically neutral, even if few of its cations are missing from its unit cells.
Reason (R) :
In an ionic solid, Frenkel defect arises due to dislocation of cation from its lattice site to interstitial site, maintaining overall electrical neutrality.
In the light of the above statements, choose the most appropriate answer from the options given below :
- 1(A) is not correct but (R) is correct
- 2Both (A) and (R) are correct and (R) is the correct explanation of (A)
- 3Both (A) and (R) are correct but (R) is not the correct explanation of (A)Official answer
- 4(A) is correct but (R) is not correct
Official answer: option 3 · NTA final answer key
Same idea
Schottky and Frenkel Defects, in other papers
NEET asked this idea twice, in 2017 and 2022. The other question below.
- 2017 Q50Which is the incorrect statement ?One-line MCQ · Medium
Schottky and Frenkel Defects: every question and how it was framed
The chapter
The Solid State in ten years of NEET
10 questions from 2017–2026, asked in 7 of 10 papers, about 0.9 a paper. The Solid State alone had 10.