(I) LiNO 3 ⟶ Δ X ( Solid ) + gas + O 2 (II) NaNO 3 → 800 ° C Δ Y ( Solid ) + gas…
(I) (II) The incorrect statement regarding above reactions is
and are respective metal oxides
is formed in reaction
Both are redox reactions
is formed in reaction
Solution
Due to the small size of \(\mathrm{Li}^{+}\), it is very polarizing and favours the formation of \(\mathrm{LiO}_{2}\).
\(4 \mathrm{LiO}_{3} ightarrow 2 \mathrm{Li}_{2} \mathrm{O}+4 \mathrm{NO}_{2}+\mathrm{O}_{2}\)
While other alkali metal nitrates decomposes to give corresponding nitrite. \(\mathrm{NaNO}_{3} \stackrel{\Delta}{\longrightarrow} \mathrm{NaNO}_{2}+\frac{1}{2} \mathrm{O}_{2}\)
\(\underset{\large\text{white crystalline} \atop \large\text{solid}}{\underbrace{4 \mathrm{NaNO}_{3}}} \stackrel{800^{\circ} \mathrm{C}}{\longrightarrow} 2 \mathrm{Na}_{2} \mathrm{O}+2 \mathrm{~N}_{2}+5 \mathrm{O}_{2}\)
,