Roasting of sulphides gives the gas X as a byproduct . This is a colourless gas with choking smell of burnt sulphur and causes great damage to respiratory organs as a result of acid rain. Its aqueous solution is acidic , acts as a reducing agent and its acid has never been isolated. The gas X is :

Roasting of sulphides gives the gas X as a byproduct . This is a colou

1.	Roasting of sulphides gives the gas X as a byproduct . This is a colourless gas with choking smell of burnt sulphur and causes great damage to respiratory organs as a result of acid rain. Its aqueous solution is acidic , acts as a reducing agent and its acid has never been isolated. The gas X is :
Answer» `SO_3` `H_(2)S` `SO_2` `CO_2` Solution :Roasting of sulphide ores gives `SO_(2)` with choking SMELL of burnt sulphur. `SO_2+ H_(2)O rArr [H_(2)SO_(3)] LTIMPLIES 2H^(+) + SO_(3)^(2-)` `SO_2` CAUSES acid rain and damage respiratory system.