How are vacancies created in the crystal lattice of NaCl when a small amount of `SrCl_(2)` is introduced into NaCl crystal?

If a small amount of antimony is added to germanium crystal

In crystal arrangement of NaCl, the arrangement of Cl− ion is

What is the C.N of Cl^(-) ions in NaCl crystals ?

What will happen when a small amount of phosphorus is addded to pure crystal of silicon ?

What is an impurity defect? What kind of impurity defect is generated in a NaCl crystal when it is doped with a small amount of SrCl_(2) ? Calculate the number of cation vacancy per Sr^(2+) ions is this crystal?

The shape of NaCl crystal is-

No. of tetrahedral voids per unit cell in NaCl crystal is-

Why does CsCl adopt the crystal structure of NaCl when it is heated at - 480^(@)C ?

If 200 A current is passed through molten NaCl for 1 min , how many moles of Cl_(2) , is produced ?

A barometer tube is 1 m long and 2 cm^2 in cross section. Mercury stands up to height of 75 cm in the tube. When a small amount of oxygen is introduced in the space above the mercury level,the level falls by 5 cm. Calculate the mass of the oxygen introduced. Room temperature =27^@C g=10 m.s^-2 and density of mercury = 13600 kg.m^-3