Chemical Environmental Engineering

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. The concentric layer in atmosphere which contains about 70% of the total mass of atmosphere
and characterised by a steady decrease in temperature is called stratosphere
B. Stratosphere is rich in ozone and is located just above the troposphere
C. Troposphere is a turbulent dusty zone containing much of water vapor and clouds
D. The earth’s atmosphere is an envelope of gases extending upto a height of about 200 kms

A. HF
B. SO2
C. H2S
D. Both B. & C.

A. 5
B. 50
C. 2000
D. 5000