List of top Chemistry Questions on Material Science

Atoms of element B form hcp lattice and atoms of element A occupy \(\frac{2}{3}\) of tetrahedral voids. The formula of the compound formed by the elements A and B is

Which of the following is not correct about the hexagonal close packing?

Which of the following point defects are shown by AgBr crystals? I. Metal excess defect, II. Schottky defect, III. Metal deficiency defect, IV. Frenkel defect

A metal X of atomic mass 75 u forms a cubic lattice of edge length 5 Å. If the density of the lattice is 2 g cm$^{-3}$, the radius (in Å) of the metal atom is ($N=6\times10^{23} \text{ mol}^{-1}$)

In a face-centered cubic (fcc) lattice, the number of atoms per unit cell is

An alloy of Cu and Au will show complete miscibility as per Hume-Rothery if: (A) The metallic radii of the Cu and Au differs only by 12.5%.
(B) Cu and Au have the same crystal structure.
(C) The chemical properties of both the metals are similar.
(D) The number of valence electrons is different in both.