Comparing Liebig's method and Carius method, which of the following statements are true? — Practical Organic Chemistry and Purification Chemistry Question

💡 Solution & Explanation

Liebig's combustion uses dry Cupric oxide ($CuO$) as the primary oxidizing agent, not fuming nitric acid. Carius method, however, does use fuming $HNO_3$ in a sealed tube alongside other specific precipitating agents ($AgNO_3$, $BaCl_2$) for halogens, sulphur, and phosphorus.