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What are the main sources of air pollutants?

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Which type of reaction occur by the ignition of dynamite and gunpowder?

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How rain water becomes acidic?

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Write two uses of salts in human body.

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Which method is used to balance the unbalanced equations?

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How nitric acid is used?

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How burning in chemical reaction is useful for us?

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From how many sources acids are obtained? Name them

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Which human activities are affecting the enviroment badly?

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Explain the properties of bases/alkalis.Also give uses of calcium hydroxide?

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Write a detailed note on pH scale

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What do you know about natural resources .Also describe how these resources can be conserved?

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Identify the nature of chemical changes in various reactions.

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Describe the importance of exohermic reactions in daily life.

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Design a model to explain the green house effect.

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Elaborate the properties of salts?

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Explain global warming.

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Describe the causes and effects of ozone depletion.

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Explain the sources, properties and harmful effects of air pollutants

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Write the uses of sulphuric acid and Acetic acid.

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