Air Pollution
Telangana Open School (TOSS) · Class 12 · Chemistry
Step-by-step guide to study Air Pollution in Telangana Open School (TOSS) Class 12 Chemistry. Topics to cover, practice strategy, and time allocation.
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Study Plan
Learn the Theory
Read the textbook chapter carefully. Note down definitions, formulas, and key concepts.
Practice Problems
Solve textbook exercises and additional practice questions. There are 50 questions available for this chapter.
Revise & Test
Revise key formulas and concepts without looking at notes. Take a practice quiz to test your understanding. Mark weak areas for re-revision.
Spaced Revision
Revisit Air Pollution after a week. Use flashcards for quick recall. Solve previous year questions from this chapter.
What to Focus On
- Atmosphere has five layers: troposphere, stratosphere, mesosphere, thermosphere, exosphere.
- Nitrogen (78.9%) and oxygen (20.94%) are the major components of air.
- CO₂ makes up 0.035% of air by volume.
- Photosynthesis converts CO₂ and H₂O into glucose and O₂ using sunlight.
- Respiration breaks down glucose to release energy, CO₂, and H₂O.
- Decay of dead organisms by bacteria and fungi releases CO₂.
- Carbon moves between the atmosphere, organisms, and Earth through natural processes.
- Photosynthesis removes CO₂ from the atmosphere.
- Respiration and decay return CO₂ to the atmosphere.
Common Mistakes to Avoid
CO₂ is the main cause of acid rain because it makes water acidic.
Ozone layer depletion and global warming are the same thing.
All air pollutants are man-made.
Memory Tips
Composition of Air: Major gases are Nitrogen (78%) and Oxygen (21%)
Layers of the Atmosphere: Troposphere, Stratosphere, Mesosphere, Thermosphere, Exosphere
Photosynthesis: CO₂ + H₂O → Glucose + O₂ (in presence of sunlight and chlorophyll)
Respiration: Glucose + O₂ → CO₂ + H₂O + Energy (ATP)
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Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Air Pollution
Practice Quiz
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Important Questions
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Revision Notes
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Formula Sheet
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Chapter Summary
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Concept Maps
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Flashcards
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Syllabus
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NCERT Solutions
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Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for Telangana Open School (TOSS) Class 12 Chemistry.