A. Respiratory & lung disease
B. Reduction in plant’s productivity owing to acid rain
C. Corrosion of building materials
D. All A., B. and C.
A. Benzopyrene
B. Peroxyacetyl nitrate
C. Carbon monoxide
D. Sulphur dioxide
A. 1 to 1.5
B. 6.5 to 8
C. 13 to 14
D. 4 to 5
A. Thermal power plant
B. Petroleum refinery
C. Nitric acid plant
D. Sulphuric acid plant
A. Using the activities of bacteria and other micro organisms
B. Aerobic oxidation
C. Both A. & B.
D. Neither A. nor B.
A. Low amount of excess combustion air
B. Large quantity of excess combustion air
C. Hydrocarbon fuel
D. Pulverised coal as fuel
A. Methemoglobinemia
B. Gastroenteritis
C. Asphyxiation
D. Tooth decay
A. Packed scrubber
B. Gravity settling chamber
C. Electrostatic precipitator
D. Hydrocyclone
A. HF
B. SO2
C. H2S
D. Both B. & C.
A. 5
B. 50
C. 2000
D. 5000