An inorganic salt when heated with concentrated `H_(2)SO_(4)` evolves a colourless
Channel: Doubtnut
Date: 2020-01-26

An inorganic salt when heated with concentrated `H_(2)SO_(4)` evolves a colourless pungent smelling gas but with concentrated `H_(2)SO_(4) \" and\" MnO_(2)`, evolves a cxoloured pungent smelling gas which bleaches moist litmus paper. The coloured gas is :