5 JEE Main 2025 Practical Chemistry previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2025 previous-year questions from the Practical Chemistry chapter of Chemistry. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Practical Chemistry chapter hub.
When a salt is treated with sodium hydroxide solution it gives gas X. On passing gas X through reagent Y a brown colour…
Identify A, B and C in the given below reaction sequence A HNO₃ ~Pb (NO₃ )₂ H₂ SO₄ B [ (2) Acetic acid \ (3) K₂ CrO₄] (…
Formation of Na₄ [Fe(CN)₅ NOS ], a purple coloured complex formed by addition of sodium nitroprusside in sodium carbona…
Among the following cations, the number of cations which will give characteristic precipitate in their identification t…
Choose the correct tests with respective observations. (A) CuSO₄ (acidified with acetic acid) + K₄ [Fe(CN)₆ ] → Chocola…