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Explain why, rusting of Iron objects is ...

Explain why, rusting of Iron objects is faster in coastal areas than in deserts.

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### Step-by-Step Solution: 1. **Understanding Rusting**: Rusting is a chemical process that occurs when iron reacts with oxygen and moisture (water) in the environment. This reaction leads to the formation of iron oxide, commonly known as rust. 2. **Conditions for Rusting**: For rusting to occur, two main conditions must be met: - Presence of oxygen from the air. - Presence of moisture (water) in the environment. ...
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LAKHMIR SINGH & MANJIT KAUR-PHYSICAL AND CHEMICAL CHANGES-EXERCISE
  1. Why are the tools and machine parts made of iron smeared with grease o...

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  2. Explain how, painting of an Iron gate prevents it from rusting.

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  3. Explain why, rusting of Iron objects is faster in coastal areas than i...

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  4. What is meant by galvanisation? Why is it done?

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  5. State two ways to prevent the rusting of iron.

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  6. What is stainless steel ? How is stainless steel made ? State an impor...

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  7. State three differences between a physical change and a chemical chang...

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  8. Write a word equation to represent the process of rusting of iron. Als...

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  9. Explain why, explosion of a firework (such as cracker) is said to be a...

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  10. Explain why, melting of ice to form water is said to be a physical cha...

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  11. What is meant by crystallisation ? State its one use.

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  12. Describe how, crystals of copper sulphate are prepared.

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  13. Give example of a chemical change which occurs by the action of heat.

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  14. Give example of a physical change which occurs by the action of heat.

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  15. What is a (a) physical change, and (b) chemical change ? Give two exam...

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  16. What is meant by the rusting of iron ? State two conditions necessary ...

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  17. What happens when an iron nail is kept immersed in copper sulphate sol...

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  18. What happens when baking soda is added to vinegar ? Write a word equat...

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  19. What happens when carbon dioxide gas is passed through lime water ? Wr...

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

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