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How is an iron gate prevented from rusti...

How is an iron gate prevented from rusting?

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NCERT TELUGU-CHANGS AROUND US-EXERCISE
  1. Which of the following changes are reversible or irreversible. Absorp...

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  2. Which of the following changes are reversible or irreversible. Rise i...

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  3. How is an iron gate prevented from rusting?

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  4. When a candle is burnt, what type of changes take place? Give another ...

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  5. Anurag appreciates the changes in ripe mango as “How nice its colour a...

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  6. Between Coastal and dry land areas, where is rusting of iron objects i...

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  7. Sudheer wants to make his vessels, which are made of Brass and copper,...

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  8. When you burn a piece of wood different changes take place. Analyse th...

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  9. When you burn a piece of wood different changes take place. Analyse th...

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  10. When you burn a piece of wood different changes take place. Analyse th...

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  11. When you burn a piece of wood different changes take place. Analyse th...

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  12. What are periodical changes ?

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  13. What are physical changes ?

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  14. Do you find any new material after burning ?

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  15. Are the materials present before burning and after burning the same ?

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  16. Can you name some changes which form new substances ?

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  17. Are there any other ways by which rusting of iron can be prevented ?

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  18. Do these articles handles of cycles etc. rust ? If not why ?

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  19. what is the percentage of sources of water on earth ?

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  20. How can we know that a given article is made up of iron or not ?

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