JEE Main 201912 Apr, Evening shiftChemistryHardSome Basic Concepts in Chemistry88× since 2002
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 :