Solid State Tes...

Match the following:

Which of the following is not a crystalline solid? 

What is the packing fraction of \(_{26}^{56} \mathrm{Fe}\)? 

(Isotopic mass \(=55.92066\))

The unit cell length of sodium chloride crystal is 564 pm. Its density would be:

The number of octahedral voids per atom present in a cubic close-packed structure is:

Pick out the crystalline substance from the following.

Which of the following is the correct definition for crystal lattice?

Which of the following is a molecular solid?

Which of the following is not a crystalline solid?

Crystalline solids are _________ in nature.

Which of the following is a crystalline solid?

Which of the following will show Schottky defect?

The appearance of colour in solid alkali metal halides is generally due to:

Which of the following has a regular repeated molecular pattern in three dimensional space?

Crystal structure of NaCl is:

Which of the following defect, if present, lowers the density of the crystal?

An ionic compound has a unit cell consisting of A ions at the corners of a cube and B ions on the centres of the faces of the cube. The empirical formula for this compound would be:

A solid has a ‘BCC’ structure. If the distance of nearest approach between two atoms is 1.73Å, the edge length of the cell is:

In a cubic unit cell, seven of the eight corners are occupied by atom A and faces are occupied by B. The general formula of the substance having this type of structure would be:

How does diamagnetic material interact with the magnetic field?

Graphite is one of the allotropes of carbon. Unlike diamond, it is an electrical conductor and a good lubricant. Graphite is a good conductor of electricity due to the presence of __________.

In a CCP lattice of X and Y, X atoms are present at the corners while Y atoms are at face centres. Then, the formula of the compound would be if one of the X atoms from a corner is replaced by Z atoms (also monovalent)?

What is packing efficiency in simple cubic lattice?

Which of the following defect is seen in FeO? 

Ammonium chloride crystallizes in a body centred cubic lattice with edge length of unit cell of 390 pm. If the size of chloride ion is 180 pm, the size of ammonium ion would be:

A crystal of lead (II) sulphide has NaCl structure. In this crystal the shortest distance between a Pb²⁺ ion and S^2– ion is 297 pm. What is the volume of unit cell in lead sulphide?

CsBr crystallises in a body centred cubic lattice. The unit cell length is \(436.6 {pm}\). Given that the atomic mass of \({Cs}-133\) and that of \({Br}=80\) amu and Avogadro number being \(6.02 \times 10^{23} {~mol}^{-1}\), the density of \({CsBr}\) is:

In a hexagonal closed packing lattice, coordination number of an atom in a unit cell is:

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

Packing efficiency of hcp structure is_____________.