The Solid State Set-1

Q1: Chottky defect defines imperfection in the lattice structure of

Q2: An $AB_2$ type structure is found in

Q3: An element (atomic mass $100\ g/mol$) having $bcc$ structure has unit cell edge $400\ pm$. The density of element is (No. of atoms in $bcc$, $Z = 2$)

Q4: What is the coordination number of sodium in $Na_2O$?

Q5: The compound, found in nature in gas phase but ionic in solid state is

Q6: The $Ca^{2+}$ and $F^–$ are located in $CaF_2$ crystal, respectively at face centred cubic lattice points and in

Q7: The coordination number in $hcp$ is

Q8: The space lattice of graphite is

Q9: Coordination numbers of $Zn^{2+}$ and $S^{2–}$ in the crystal structure of wurtzite are

Q10: Gold has a face centred cubic lattice with an edge length of the unit cube of $407\ pm$. Assuming the closest packing, the diameter of the gold atom is