NEET Chemistry - Chapter 29

Environmental Chemistry

Fresh NEET environmental-chemistry notes on air, water, and soil pollution, greenhouse effect, ozone depletion, acid rain, BOD, and eutrophication.

NEET Chemistry Environmental Chemistry Notes Ad
Environmental Chemistry Notes Sponsor

Premium placement inside the NEET chemistry chapter notes for Environmental Chemistry.

Concept Block

1. Air Pollution, Smog, and Acid Rain

Air pollution questions in NEET usually focus on major gaseous pollutants, photochemical smog, and acid rain. Sulfur and nitrogen oxides are especially important because they connect directly with atmospheric damage.

Concept Block

2. Greenhouse Effect and Ozone Layer

The greenhouse effect and ozone depletion are conceptually different and often tested together. One concerns trapping of heat, while the other concerns loss of UV protection in the stratosphere.

Concept Block

3. Water Pollution, BOD, and Eutrophication

Biochemical oxygen demand indicates the organic load of water, while eutrophication results from nutrient enrichment. These are among the chapter’s most direct and repeatable scoring concepts.

Concept Block

4. Soil Pollution, Biomagnification, and Waste Issues

Persistent pesticides and non-biodegradable substances create long-term ecological problems, especially through food-chain accumulation. NEET often frames these as application and definition-based questions.

Concept Block

5. Category-First Environmental Revision

The fastest revision method is to sort each topic into air, water, soil, or atmospheric-protection ideas. Once the category is known, the key pollutants and effects are much easier to recall accurately.

Practice Tests

5 Chapter Tests of 25 Questions Each

Each test is original, NEET-aligned, and answer-backed. Use them as sectional revision instead of a single long mock so your weak subtopics become easier to identify quickly.

Test 1: Air Pollution Basics

Primary pollutants, smog, acid rain, and toxic gases.

Test 2: Greenhouse and Ozone

Greenhouse gases, UV protection, and CFC-related concepts.

Test 3: Water Pollution

BOD, dissolved oxygen, eutrophication, and aquatic effects.

Test 4: Soil and Ecological Effects

Biodegradable vs non-biodegradable pollutants and biomagnification.

Test 5: Mixed NEET Drill

Integrated environmental-chemistry concept and application practice.

Open Practice Tests
Finished this topic?

Keep the practice loop moving

Move straight from chapter-wise questions into a subject test, then loop back into weaker areas instead of ending the session here.