Solid State Tes...

A metal crystallizes in two cubic phases, fcc and bcc whose unit cell lengths are $$3.5 \mathring A$$ and $$3.0 \mathring A$$ respectively. The ratio of density of fcc and bcc is :

$$TiO_{2}$$ is a well known example of :

Hydrogen occupies the _________ holes, while carbon and nitrogen occupy __________ holes. 

The fraction of total volume occupied by the atoms present in a simple cubic lattice is:

An element crystallises in a bcc lattice. Nearest neighbours and percentage of volume occupied by spheres in the unit cell are :

Aluminium has fcc structure. The edge length of the unit cell is $$404$$ pm. If the density of the metal is $$2.7$$ g cm$$^{-3}$$, the molar mass (in gmol$$^{-1}$$) of Al atom is :

Edge length of a cube is $$400$$ pm. Its body diagonal (in pm) would be:

A metal crystallises as body centred cubic lattice with the edge length of unit cell equal to $$0.304$$ nm. If the molar mass of the metal is $$50.3$$ g mol$$^{-1}$$, its density (in g cm$$^{-3}$$) is :

Percentage of free space in a body-centred cubic unit cell is:

An element crystallizes as a face-centred cubic lattice with edge length equal to $$460$$ pm. The density (in gcm$$^{-3}$$) of the element X when molar mass of X atom is $$60$$ gmol$$^{-1}$$ is: