List of top Chemistry Questions on The solid state asked in NEET (UG)

What fraction of one edge centred octahedral void lies in one unit cell of fcc?

An element has a body centered cubic (bcc) structure with a cell edge of 288 pm. The atomic radiusis:

Iron exhibits $bcc$ structure at room temperature. Above $900^{\circ}C$, it transforms to fee structure. The ratio of density of iron at room temperature to that at $900^{\circ}C$ (assuming molar mass and atomic radii of iron remains constant with temperature) is

Which is the incorrect statement?

In calcium fluoride, having the fluorite structure, the coordination numbers for calcium ion $(Ca^{2+})$ and fluoride ion $(F^-)$ are

Lithium has a $bcc$ structure. Its density is $530 \, kg \, m^{-3}$ and its atomic mass is $6.94 \, g \, mol^{-1}$. Calculate the edge length of a unit cell of Lithium metal. ($NA = 6.02 \times 10^{23} \, mol^{-1}$)

The number of carbon atoms per unit cell of diamond unit cell is

A metal has a fcc lattice. The edge length of the unit cell is 404 pm. The density of the metal is 2.72 g cm^-3. The molar mass of the metal is
(N_A Avogadro's constant = 6.02 × 10²³ mol^-1)

Which of the following statements about the interstitial compounds is incorrect ?

The appearance of colour in solid alkali metal halides is generally due to :

Products of the following reaction:

The pyknometric density of sodium chloride crystal is 2.165×10³ kg m^–3 while its X-ray density is 2.178×10³ kg m^–3. The fraction of unoccupied sites in sodium chloride crystal is:

Zn convert it's melted state to its solid state, it has HCP structure, then find out nearest no. of nearest atom

In BCC, the distance between two nearest atoms will be 

The cations and anions are arranged in alternate form in:

A cube of any crystal A-atom placed at every corners and B-atom placed at every centre of face. The formula of compound:

For two ionic solids $CaO $ and $KI$, identify the wrong statement among the following.

On doping Ge metal with a little of In or Ga, one gets