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From pollution control point of view, the maximum permissible concentration of sulphur dioxide in atmospheric air is about __________ ppm.
Maximum sulphur percentage in low sulphur heavy stock (LSHS) furnace oil is about
Bleaching action of moist sulphur dioxide is because of its
Sulphur dioxide bleaches colouring matter by :
Dearomatisation of kerosene (by liquid sulphur dioxide extraction) is done to
Sulphur dioxide level in the atmosphere can be reduced by using
Sulphur dioxide present in the industrial chimney exhaust causes
The freezing point of sulphur dioxide is
With increase in temperature, the equilibrium constant at constant pressure (Kp) for oxidation of sulphur dioxide
Sulphur dioxide present in the industrial chimney exhaust gases causes