Chemical Environmental Engineering

A. Nitric acid
B. Sulphuric acid
C. Chlor alkali
D. Iron & steel

A. Industrial chimney exhaust
B. Automobiles exhaust
C. Photochemical reaction in polluted atmosphere
D. Burning of domestic fuel

A. Bog iron
B. Limestone powder or alkalised alumina
C. Silica gel
D. Active carbon

A. High temperature incineration
B. Pathological incineration
C. Pyrolysis
D. Underground burial in concrete containers

A. 84
B. 88
C. 80
D. 92

A. Files
B. Algae
C. Micro-organisms
D. Mosquitoes

A. 1.8
B. 6.2
C. 7.3
D. 13.4

A. Tanneries
B. Glass & ceramic
C. Beverages
D. Any of these

A. Grinding
B. Machining
C. Cutting
D. Polishing

A. CO
B. CO2
C. NO
D. Hydrocarbons