Solid State · Chemistry · AP EAPCET
MCQ (Single Correct Answer)
An element crystallising in fcc lattice has a density of $$8.92 \mathrm{~g} \mathrm{~cm}^{-3}$$ and edge length of $$3.61 \times 10^{-8} \mathrm{~cm}$$. What is the atomic weight of element? $$\left(N=6.022 \times 10^{23} \mathrm{~mol}^{-1}\right)$$
Which of the following statement is correct for fcc lattice?
Match List I with List II.
| List - I (Defects) |
List - II (Examples) |
||
|---|---|---|---|
| (A) | Frenkel defects | (I) | FeO |
| (B) | Schottkey defects | (II) | NaCl |
| (C) | Vacancy defects | (III) | AgCl |
| (D) | Metal deficiency defects | (IV) | Crystals with vacant lattice sites. |
Which of the following solids is not a molecular solid?
The number of network solids and ionic solids in the list given below is respectively. $$\mathrm{H}_2 \mathrm{O}$$ (ice), $$\mathrm{AlN}, \mathrm{Cu}, \mathrm{CaF}_2$$, diamond, MgO , $$\mathrm{CCl}_4, \mathrm{ZnS}, \mathrm{Ag}, \mathrm{NaCl}, \mathrm{SiO}_2$$
If molten NaCl contains $$\mathrm{SrCl}_2$$ as impurity, crystallisation can generate
Photographic plates are prepared by coating emulsion of which of the following in gelatin?
In the face centered unit cell, the lattice points are present at
The fcc crystal contains how many atoms in each unit cell?