$CdS$ crystallizes in which type of crystal system?

Match the crystal system/unit cells mentioned in Column $I$ with their characteristic features mentioned in Column $II$.

Column $I$	Column $II$
$(A)$ Simple cubic and face-centred cubic	$(p)$ have these cell parameters $a=b=c$ and $\alpha=\beta=\gamma=90^{\circ}$
$(B)$ Cubic and rhombohedral	$(q)$ are two crystal systems
$(C)$ Cubic and tetragonal	$(r)$ have only two crystallography angles of $90^{\circ}$
$(D)$ Hexagonal and monoclinic	$(s)$ belong to same crystal system

For an orthorhombic crystal system,the axial lengths are $a \neq b \neq c$. What are the axial angles?

Identify the type of unit cell containing a single particle.

Body-centred cubic and face-centred cubic unit cells have $n_1$ and $n_2$ effective number of atoms. Which one of the following $[n_1, n_2]$ combinations is correct?

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