(A): 22.4L of $N_2$ at NTP and 5.6L $O_2$ at NTP contain equal number of molecules.

(R):Under similar conditions of temperature and pressure all gasses contain equal number of atoms.          

$$\begin{gathered} \mathrm{At} \mathrm{STP}, \\ 22.4 \mathrm{L} \mathrm{of} {\mathrm{N}}_2={\mathrm{N}}_{\circ }\mathrm{molecules} \left({\mathrm{N}}_{\circ }=\mathrm{Avogadro}\text{'}\mathrm{s} \mathrm{number}\right) \end{gathered}$$      

$$\begin{gathered} \mathrm{AT} \mathrm{STP}, \\ 5.6 \mathrm{L} \mathrm{of} {\mathrm{O}}_2=\frac{{\mathrm{N}}_{\circ }}{4} \mathrm{molecules} \end{gathered}$$

According to Avogadro′s Law, at the same temperature and pressure, equal volumes of all gases contain equal number of molecules.

Both A and R are false.