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Atmospheric Pollution — Flashcards

ICSE · Class 9 · Chemistry

44 flashcards for Atmospheric Pollution (ICSE Class 9 Chemistry) to test yourself on key terms and facts. Sample: "What is environmental pollution?"

43 questions44 flashcards7 formulas & key relations5 concepts

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An infographic illustrating the classification of pollutants based on their state (solid, liquid, gaseous) and degradability (degradable, slowly degradable, non-degradable) with examples.
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44 Flashcards·
Introduction and definitionIntroduction and classificationSources of air pollutionAir pollutionOxides of nitrogen
Card 1Introduction and definition

What is environmental pollution?

Answer

Environmental pollution is the effect of undesirable changes in our surroundings that have a harmful effect on plants, animals and human beings.

Card 2Introduction and definition

What is a pollutant?

Answer

A pollutant is a toxic or harmful substance that contaminates and degrades the environment and has an adverse effect on life forms.

Card 3Introduction and classification

What are the two types of pollutants based on origin?

Answer

Pollutants are of two types based on origin: natural pollutants and man-made pollutants.

Card 4Sources of air pollution

Name some natural sources of air pollutants.

Answer

Natural sources include volcanoes, decaying vegetation, forest fires, winds and dust storms.

Card 5Sources of air pollution

Name some man-made sources of air pollutants.

Answer

Man-made sources include automobiles, factories, industrial processes and decay of crop residue.

Card 6Air pollution

What is air pollution?

Answer

Air pollution is the degradation of air quality due to harmful contaminants. It affects human, plant and animal life.

Card 7Oxides of nitrogen

Write the balanced equation for formation of nitric oxide in air.

Answer

Balanced equation: N2 + O2 --(high temperature)--> 2NO. Nitrogen and oxygen combine at high temperature in furnaces and engines to form nitric oxide.

Card 8Oxides of nitrogen

Write the balanced equation for nitrogen dioxide formation from nitric oxide.

Answer

Balanced equation: 2NO + O2 -> 2NO2. Nitric oxide reacts with atmospheric oxygen to form nitrogen dioxide.

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Frequently Asked Questions

What are the important topics in Atmospheric Pollution for ICSE Class 9 Chemistry?
Key topics in Atmospheric Pollution include Pollution and Air Pollution, Sources of Air Pollutants, Important Air Pollutants and Their Harmful Effects, Oxides of Nitrogen and Oxides of Sulphur. Study these first, then practise questions on each for Class 9 exams.
How many flashcards are available for Atmospheric Pollution?
There are 44 flashcards for Atmospheric Pollution covering key definitions, facts and ideas. A few sample cards are shown on this page.
How should I revise Atmospheric Pollution for Class 9 exams?
Learn the core ideas first, then work through the 43 practice questions on Atmospheric Pollution. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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