‘Particulate’ air pollutants are finely divided solids and liquids. Which of the following is not a „particulate‟ ?

Related Mcqs:

Pick out the correct statement ?

A. Chemical oxygen demand (COD) is a measure of chemically oxidisable organic matter present in water B. COD is determined by oxidising the organic matter present in water with potassium dichromate in cone, sulphuric acid solution at boiling temperature for specified time C. COD is related to BOD of a given waste in water but … Pick out the correct statement ?Read More...

Which is the most practical and economical method for removal of suspended solid matter from polluted water ?

A. Sedimentation B. Skimming off C. Chlorination D. Biological oxidation...

Radioactive substances present in the polluted water stream can be removed by_________________?

A. Biological oxygen treatment B. Coagulation and filtration C. Adsorption in ion exchange materials D. None of these...

Exposure to SO2 containing chimney gases results in the__________________?

A. Reduction in strength of leather & cloth B. Acceleration of corrosion rates of metals C. Increased drying & hardening time of paints D. All A., B. and C....

Pick out the wrong statement?

A. Catalytic converter is fitted in automobiles to reduce carbon monoxide concentration in exhaust emissions B. Inhalation of pollutant carbon monoxide results in death by asphyxiation C. Sulphur dioxide is the main pollutant emitted from the exhaust of petrol driven automobiles D. Decomposition of plants containing chlorophyll is a natural source of carbon monoxide in … Pick out the wrong statement?Read More...