Regarding the thermal decomposition of s-block metal nitrates, which of the following statements are — s Block Elements Chemistry Question

💡 Solution & Explanation

Normal alkali metal nitrates ($Na, K, Rb, Cs$) decompose to give the corresponding metal nitrite and oxygen gas. However, $LiNO_3$ and all alkaline earth metal nitrates (like $Mg(NO_3)_2$) decompose to give the metal oxide, $NO_2$ (brown gas), and $O_2$. Thus, $KNO_3$ yields $KNO_2$, making D incorrect.