Oxides of sulphur (SO_(2),SO_(3)) are due to

1.	Oxides of sulphur (SO_(2),SO_(3)) are due to
Answer» buring of sulphur containing fossil ORE roasting and SMELTING of sulphide ore oxdation by air `H_(2)O_(2)` and `O_(3)` All of the above Solution :(a) `S(in fossil FUEL)+O_(2) rarr SO_(2)` (b) `2CuFeS_(2)+5.5O_(2)underset("Roasting")overset("Smelting")(rarr) Cu_(2)O+2FeO+4SO_(2)` (c ) `SO_(2)+O_(3)rarr SO_(3)+O_(2)` `SO_(3)+O_(3) rarr SO_(3)+O_(2)`.

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