Solid State Tes...

The yellow colour or $$ZnO$$ and conducting nature produced in heating is due to

Packing fraction in 2D-hexagonal arrangement of identical spheres is

The volume effectively occupied by a single $$CsCl$$ ion pair in the crystal is?

The density of crystalline $$CsCl$$ is $$3.988\ g/cc$$. The volume effectively occupied by a single $$CsCl$$ ion pair in the crystal is

The crystal with $$a=  b \neq c, \alpha = \beta =\gamma =90^o$$ is:

Which of the following characteristic features match(es) with the crystal systems: cubic and tetragonal

The percentage packing efficiency of the two dimensional arrangement of sphere for plane ABCDEF shown below is : 

In $$AgBr$$ crystal, the ion size lies in the order $$Ag^{+} < < Br^{-}$$. The $$AgBr$$ crystal should have:

In a closed packed structure, if $$r$$ is the radius of the spherical void and $$R$$ is the radius of the spheres forming voids, the critical $$r /R$$ value of the tetrahedral void is equal to

The crystal lattice of ice is mostly formed by :