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What is the observation? Give reasons....


What is the observation? Give reasons.

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Lime water turns slightly turbid due to the carbon dioxide present in air.
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PEARSON IIT JEE FOUNDATION-AMAZING AIR-Test Your Concepts (Short Answer)
  1. What is the observation when air comes in contact with a cool surface ...

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  2. Identify the mistake(s) in the diagrams and give justification.

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  3. What inference can be drawn from the above diagrams?

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  4. Write the chemical name of the substance taken in the test tube.

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  5. What is the observation? Give reasons.

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  6. The air present in the test tube as shown in the diagram is sucked out...

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  7. Can an empty bottle be filled with water , when it is inverted into a ...

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  8. (a) Mention the substance used in white washing. (b) State the r...

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  9. Answer the following questions based on the diagram given. Predic...

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  10. Answer the following questions based on the diagram given. Draw t...

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  11. What is global warming? Mention the different ways of minimizing globa...

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  12. What is air pollution?

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  13. Mention the effects of acid rain .

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  14. What are the different ways of minimizing air pollution?

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  15. Why are tall chimneys recommended for factories?

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  16. Give reasons : Policemen regulating traffic often wear masks.

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  17. Give reasons : When water is heated, bubbles are observed.

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  18. It is not advisable to cook food on a wood fire in a closed room . Gi...

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  19. Between galvanized iron containers and tinned iron containers which ar...

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  20. Explain the role of catalytic converters in automo - bile engines.

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