Solid State Tes...

The ratio of a number of rectangular planes and diagonal plane in a cubic unit cell is ____.

A CCP of $$n$$ spheres of radius $$r$$, $$n$$ spheres of radius $$0.414\, r$$ and $$2n$$ spheres of radius $$0.225\, r$$ are introduced in the octahedral and tetrahedral void respectively. Therefore packing of the lattice is:

Molybdenum (At. wt. $$= 96 \ g/mol$$) crystallizes as $$bcc$$ crystal. If density of crystal is $$10.3 \ g/cm^3$$, then radius of $$Mo$$ atom is: [Use : $$\,N_A = 6 \times 10^{23}$$]

The unit cell with the structure above refer to which crystal system?

Arrange the following in decreasing order of melting point: $$NaCl,SiO_{2},Dry    Ice, Ice$$ 

The number of parameters that defines a unit cell is 

Match the column 1 correctly with the column 2 given below

The incorrect statement among the following is:

$$AB$$ has $$NaCl$$ structure while $$XB$$ has $$CsCl$$ structure if $${ r }_{ A }|{ r }_{ B }=\ 5$$ and $${ r }_{ X }|{ r }_{ B }= 0.75$$ then what is the ratio of edge length of unit cell of $$AB$$ and $$XB$$.

The ratio of the volume of tetragonal lattice to that of a hexagonal lattice is?