The 8:8 type of close packing is present in

If a≠b≠c, B≠90^o the crystal system is

The substance which conduct electricity in the solid state is

The existence of a substance in more than one solid modification is known as

In cubic close packing of spheres in three dimensions,the coordination number of each sphere is

The type of cubic lattice having maximum number of atoms per unit cell is

Out of the following a non-crystalline solid is

The number of octahedral sites per sphere in fcc structure is

The phenomenon in which crystals produce electricity on applying pressure is

In a solid AB having rock salt structure, 'A' atoms occupy the corners of the cubic unit cell. If all the face-centered atoms along one of the axes are removed, then the resultant stoichiometry of the solid is