AEC-01 Environmental Chemistry Topic Covered BLOCK-1 SOIL Unit-1 Nature and Formation of Soil Unit-2 Soil Quality Parameters Unit-3 Soil Fertility and Productivity BLOCK-2 WATER Unit-4 Water Resources Unit-5 Water Characteristics Unit-6 Water Quality Criteria and Uses BLOCK-3 ATMOSPHERE Unit-7 Atmosphere: Nature and Importance Unit-8 Meteorological Aspects of Air Pollution Unit-9 Air Pollutants Unit-10 Air Quality Monitoring and Control BLOCK-4 POLLUTANTS IN SOIL AND WATER Unit-11 Industrial Effluents Unit-12 Environmental Pollution Due To Agrochemicals Unit-13 Municipal and Domestic Wastes Unit-14 Effects of Soil and Water Pollution BLOCK-5 NON-INSTRUMENTAL METHODS OF ANALYSIS Unit-15 Sampling Techniques and Preservation Unit-16 Classical Techniques of Analysis Unit-17 Separation Techniques BLOCK-6 INSTRUMENTAL METHODS OF ANALYSIS Unit-18 Electroanalytical Methods Unit-19 Optical Methods Unit-20 Microbiological Examination of Water, Soil and Air Total-5- Solved-0, Unsolved-5 June (2019,2020,2022) December (2020,2021)