Solid State Tes...

Match the following:

A compound formed by elements A and B crystallises in cubic structure, in which A atoms are at the corners of the cube, while B atoms are at the face centres of the cube. What is the formula of the compound?

Which of the following crystal systems has three unequal axes at right angles to each other?

A solid is formed and it has three types of atoms X, Y and Z. X forms an fcc lattice with Y atoms, occupying all the tetrahedral voids and Z atoms occupy half the octahedral voids. The formula of the solid is

In which of the following ionic solids is the coordination number of each of the ions 4?

Potassium crystallises in a body-centered cubic lattice with unit cell length a = 5.20 Å.

Which of the following statements is wrong?

Which of the following defects does ZnS show?

Which of the following substances is/are diamagnetic?

Which among the following is not true for crystalline solid?

In which of the following cubic lattices are the points present at all the corners as well as at the centre of the cube?

How many tetrahedral voids can exist per unit cell in hexagonal close packing sphere?

The zinc blende (ZnS) structure is cubic. The unit cell may be described as a face-centred sulphide ion sublattice with zinc ions in the centre of alternating minicubes made by partitioning the main cube into 8 equal parts.

How many nearest neighbours does Zn²⁺ ion have?

The following question has four choices out of which ONLY ONE is correct.

The number of formula units of NaCl in the unit cell is

The general formula of an ionic compound crystallising in body-centred cubic structure is

Which of the following best describes the reason for flame colours of metal ions?