NEET 2022
- Exam
- NEET
- Year
- 2022
- Subject
- Chemistry
- Chapter
- Solid State
NEET 2022 · Chemistry · Solid State
Match List-I with List-II : List-I (Defects) List-II (Shown by) (a)...
Match List-I with List-II :
Choose the correct answer from the options given below :
| List-I (Defects) | List-II (Shown by) |
| (a) Frenkel defect | (i) non-ionic solids and density of the solid decreases |
| (b) Schottky defect | (ii) non-ionic solids and density of the solid increases |
| (c) Vacancy defect | (iii) ionic solids and density of the solid decreases |
| (d) Interstitial defect | (iv) ionic solids and density of the solid remains constant. |
Options
- A(a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
- B(a)-(i), (b)-(iii), (c)-(ii), (d)-(iv)
- C(a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
- D(a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)
Correct answer
D. (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)
Step-by-step solution
(a) Frenkel Defect-formed in ionic compounds where an ion is missing from its lattice site and occupies interstitial site. Compounds suffering from such defects does not have any change in their density.
(b) Schottky defect-Observed inionic compounds where equal number of ions are found missing from their lattice site. Such compounds have lower density.
(c) Vacancy defect-Observed in non-ionic solids where either an anion or cation is missing from their sites. Density of such solids are lower.
(d) Interstitial defects-Observed in nonionic solids where an extra cation may get into interstitial site, increasing the density of solid.