Solid State Tes...

CaO and NaCl have the same crystal structure and nearly the same ionic radius. If lattice energy of NaCl is x, then lattice energy of CaO is

A solid 'AB' is having NaCl type structure in which 'A' atoms are present in FCC lattice or CCP lattice. If all the face centred atoms along one of the axes are removed, then the resultant stoichiometry of the solid is

Calcium titanate crystallises in perovskite structure, which is a cubic lattice. In this, calcium ions occupy the corners of the unit cell, oxide ions occupy the face centres and titanium ions occupy the centres of the unit cell. If Ti⁴⁺ ions are described as occupying the holes in Ca-O lattice, the type of holes and fraction of these holes occupied by these ions are

The defect produced when NaCl is doped with SrCl₂ is

A crystalline substance composed of Ba, Ti and O crystallises in a perovskite structure. This structure may be described as a cubic lattice, with barium ions occupying corners of the unit cell, oxide ions occupying the face centres and titanium ions occupying the centres of the unit cell. Which of the following statements is not true?