Solid State - Physical Chemistry - Chemistry Previous Year Questions

The number of atoms in \(2.4 \mathrm{~g}\) of body centred cubic crystal with edge length \(200 \mathrm{pm}\) is (density \(=10 \mathrm{~g} \mathrm{~cm}^{-3}, \mathrm{~N}_A=6 \times 10^{23}\) atoms\(/ \mathrm{mol}\))

Which of the following is a network crystalline solid?

1 mole of \(\mathrm{NaCl}\) is doped with \(10^{-5}\) mole of \(\mathrm{SrCl}_2\). The number of cationic vacancies in the crystal lattice will be

Silicon doped with gallium forms

A metal crystallises in face centred cubic structure with metallic radius \(\sqrt{2} \mathop A\limits^o\). The volume of the unit cell (in \(\mathrm{m}^3\) ) is

In chrysoberyl, a compound containing beryllium, aluminium and oxygen, oxide ions form cubic close packed structure. Aluminium ions occupy \(\frac{1}{4}\)th of octahedral voids. The formula of the compound is

The correct statement regarding defects in solid is

A metal crystallises in bcc lattice with unit cell edge length of \(300 \mathrm{~pm}\) and density \(615 \mathrm{~g~cm}^{-3}\). The molar mass of the metal is

Vacant space in body centered cubic lattice unit cell is about

How many number of atoms are there in a cube based unit cell, having one atom on each corner and 2 atoms on each body diagonal of cube?

Which of the following is not true about the amorphous solids?

Alkali halides do not show dislocation defect because

Match the column A (type of crystalline solid) with the column B (example for each type)

If '\(a\)' stands for the edge length of the cubic systems. The ratio of radii in simple cubic, body centred cubic and face centred cubic unit cells is

In solid state, \(\mathrm{PCl}_5\) is a/an