NEET UG 2017 · Chemistry · Question 50
NEET 2017 Chemistry, question 50
Question 50 of the NEET 2017 paper (code A) 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 CBSE official answer key gives option 4.
Updated 2026-10-08
Q50 · Chemistry
Which is the incorrect statement ?
- 1 has non stoichiometric metal deficiency defect.
- 2Density decreases in case of crystals with Schottky's defect.
- 3NaCl(s) is insulator, silicon is semiconductor, silver is conductor, quartz is piezo electric crystal.
- 4Frenkel defect is favoured in those ionic compounds in which sizes of cation and anions are almost equal.Official answer
Official answer: option 4 · CBSE official answer key
Same idea
Schottky and Frenkel Defects, in other papers
NEET asked this idea twice, in 2017 and 2022. The other question below.
- 2022 Q65Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : In a particular…Assertion–reason · 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.