$A$ saturated hydrocarbon possesses $2$ carbon atoms and all its hydrogen atoms are of the same type. Provide the structure and the type of hydrogen atoms present.

(N/A) The saturated hydrocarbon with $2$ carbon atoms is ethane,which has the molecular formula $C_{2}H_{6}$.
The structural formula is $CH_{3}-CH_{3}$.
In ethane,all $6$ hydrogen atoms are attached to primary $(1^{\circ})$ carbon atoms,making them all equivalent primary $(1^{\circ})$ hydrogen atoms.