JEE Main 2019 — Some Basic Concepts Of Chemistry Question with Solution
From: JEE Main 2019 (Online) 12th April Evening Slot
Question
Thermal decomposition of a Mn compound (X) at 513 K results in compound Y, MnO2 and gaseous product.
MnO2 reacts with NaCl and concentrated H2O4 to give a pungent gas Z. X, Y and Z, respectively, are :
Choose an option
Show full solutionCorrect option: A
Correct answer
AKMnO4, K2MnO4 and Cl2
Step-by-step explanation
| KMnO4 | K2MnO4 | + | MnO2 | + | O2 | |
|---|---|---|---|---|---|---|
| (X) | (Y) |
| MnO2 | + | NaCl | + | conc H2SO4 | MnSO4 | + | NaHSO4 | + | H2O | + | Cl2 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (Z) |
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This is a previous-year question from JEE Main 2019, covering the Some Basic Concepts Of Chemistry chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.