Solid State PYQs - Last 5 Years

How are edge length '\(a\)' of the unit cell and radius '\(r\)' of the sphere related to each other in ccp structure? (Choose correct option for your answer)

How many number of tetrahedral voids are formed in \(5 \mathrm{~mol}\) of a compound having cubic close packed structure? (Choose the correct option)

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

A compound is formed by two elements A and B. The elements B forms cubic close packed structure and atoms of A occupy \(1 / 3\) of tetrahedral voids. If the formula of the compound is \(\mathrm{A}_{x} \mathrm{B}_{y}\), then the value of $$x...

Match List-I with List-II :

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Copper crystallises in fcc unit cell with cell edge length of 3.608 \(\times\) 10\(-\)8 cm. The density of copper is 8.92 g cm\(-\)3. Calculate the atomic mass of copper.

Choose the correct statement:

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : In a particular point defect, an ionic solid is electrically neutral, even if few of its cations are missing from its...

Right option for the number of tetrahedral and octahedral voids in hexagonal primitive unit cell are :

The correct option for the number of body centred unit cells in all 14 types of Bravais lattice unit cells is :

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

A compound is formed by cation C and anion A. The anions form hexagonal close packed (hcp) lattice and
the cations occupy 75% of octahedral voids. The formula of the compound is :