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Fill in the blanks in the following stat...

Fill in the blanks in the following statements:
Two methods by which rusting of iron can be prevented are _______and ______.

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NCERT-PHYSICAL AND CHEMICAL CHANGES -EXERCISE
  1. Classify the changes involved in the following processes as physical o...

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  2. Classify the changes involved in the following processes as physical o...

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  3. Classify the changes involved in the following processes as physical o...

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  4. State whether the following statements are true or false. In case a st...

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  5. State whether the following statements are true or false. In case a st...

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  6. State whether the following statements are true or false. In case a st...

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  7. State whether the following statements are true or false. In case a st...

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  8. State whether the following statements are true or false. In case a st...

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  9. Fill in the blanks in the following statements: When carbon dioxide ...

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  10. Fill in the blanks in the following statements: The chemical name of...

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  11. Fill in the blanks in the following statements: Two methods by which...

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  12. Fill in the blanks in the following statements: Changes in which onl...

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  13. Fill in the blanks in the following statements: Changes in which new...

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  14. When baking soda is mixed with lemon juice, bubbles are formed with th...

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  15. When a candle burns, both physical and chemical changes take place. Id...

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  16. How would you show that setting of curd is a chemical change?

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  17. Explain why burning of wood and cutting it into small piece are consid...

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  18. Describe how crystals of copper sulphate are prepared.

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  19. Explain how painting of an iron gate prevents it from rusting.

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  20. Anaerobic bacteria digest animal waste and produce biogas (Change - A)...

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