The edge  length  of face centred  unit cubic cell is  508pm.  If the  radius of the cation is 110pm,  the radius of the  anion is ,

At  which one  of the following  temperature  pressure conditions, the deviation of a gas  from ideal behavior  is  expected  to be  minimum?

If 'a'  stands for the edge  length of the cubic  systems.  simple cubic, body centred cubic  and face centred  cubic, then the  ratio of radii of the spheres  in these  systems  will be respectively.

At  25^oC  and 730  mm  pressure,  380mL of  dry  oxygen was collected.  If the  temperature  is constant,  what volume  will the oxygen occypy  at 760mm pressure?

The intermettalic compound LiAg  crystallises  in cubic  lattice  in which  both lithium  and silver  have  coordination number of  eight.  The crystal class is 

Lithium  metal crystallises  in a body  centred cubic  crystal.  If the  length  of the side of the  unit cell of lithium  is 351pm,  the atomic radius of  the lithium will be,

A compound formed  by elements A and B crystallises in the cubic structure, where  A  atoms are present  at the  corner of a  cube and B atoms  are present at the  face centres.  The formula  of the compound is

Most  crystals  show  good cleavage  because  their atoms, ions or  molecules  are

Van der  waals'  real gas, act as an ideal  gas, at which condition?

The pyknometric  density  of sodium chloride crystal is  2.165x10³kg m^-3. While  its  X -ray density  is 2.178  x10³ kgm^-3.  The fraction of unoccupied  sites in sodium chloride  crystal  is