Chemistry - Complete s-block Question with Solution | TestHub

The correct reaction for the formation of $\mathrm{NaCl}$ is $$\mathrm{Na}(s)+\frac{1}{2}{\mathrm{Cl}}_2(g)⟶\mathrm{NaCl}(s)$$ (As the compounds are formed from their elements when they are present in their most stable form.)