Environmental Pollution Control

Sulphur dioxide ✘ Photochemical oxidants ✘ Chlorofluorocarbon ✘ Smog ✔

Cyclone separator ✘ Electrostatic precipitator ✘ Fabric filter ✘ Wet scrubber ✔

Cyclone separator ✘ Electrostatic precipitator ✘ Fabric filter ✘ Wet scrubber ✔

Cyclone separato ✘ Electrostatic precipitator ✘ Catalytic converter ✘ Wet scrubber ✔

Sulphur dioxide ✘ Chlorine ✘ Hydrogen ✘ Oxygen ✔

Methyl isocyanate ✘ Potassium isothoiocynate ✘ Ethyl isocyanate ✘ Sodium isothiocyanate ✔

A measure of the organic matter presents in water ✘ Usually less than COD ✘ Biochemical oxygen demand ✘ All of the above ✔

Equal to 1 ✘ Less than 1 ✘ More than 1 ✘ None of them ✔

Industrial pollution ✘ Air pollution ✘ Pollution capacity of effects ✘ Dissolved O2 needed by microbes to decompose organic waste. ✔

Blue baby syndrome ✘ Fluorosis ✘ Change in taste and odour ✘ Intestinal irritation ✔