Thermal decomposition of which of the following inorganic nitrates specifically liberates laughing g — Qualitative and Quantitative Analysis Chemistry Question

💡 Solution & Explanation

Heavy metal nitrates (like Pb, Ag) decompose to yield $NO_2$ and $O_2$. Alkali nitrates (like Na, K) yield nitrites and $O_2$. Ammonium nitrate ($NH_4NO_3$) decomposes thermally to yield nitrous oxide ($N_2O$) and water vapor.